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Finding the Fourth Proportional to 534.10, 801.15 and 291.10

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Solution

The fourth proportional to 534.10, 801.15 and 291.10 is: 436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.10 : 801.15 = 291.10 : x
  2. Step 2: Convert to fraction form
    534.10/801.15 = 291.10/x
  3. Step 3: Cross multiply
    534.10x = 801.15 × 291.10
  4. Step 4: Simplify right side
    534.10x = 233,214.77
  5. Step 5: Solve for x
    x = 233,214.77/534.10
  6. Step 6: Final answer
    x = 436.65

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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.