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Finding the Fourth Proportional to 530.73, 732.15 and 344.16

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Solution

The fourth proportional to 530.73, 732.15 and 344.16 is: 474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.73 : 732.15 = 344.16 : x
  2. Step 2: Convert to fraction form
    530.73/732.15 = 344.16/x
  3. Step 3: Cross multiply
    530.73x = 732.15 × 344.16
  4. Step 4: Simplify right side
    530.73x = 251,976.74
  5. Step 5: Solve for x
    x = 251,976.74/530.73
  6. Step 6: Final answer
    x = 474.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.