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Finding the Fourth Proportional to 1,030.24, 1,545.12 and 346.24

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Solution

The fourth proportional to 1,030.24, 1,545.12 and 346.24 is: 519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.24 : 1,545.12 = 346.24 : x
  2. Step 2: Convert to fraction form
    1,030.24/1,545.12 = 346.24/x
  3. Step 3: Cross multiply
    1,030.24x = 1,545.12 × 346.24
  4. Step 4: Simplify right side
    1,030.24x = 534,982.35
  5. Step 5: Solve for x
    x = 534,982.35/1,030.24
  6. Step 6: Final answer
    x = 519.28

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.