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Finding the Fourth Proportional to 530.57, 732.18 and 297.70

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Solution

The fourth proportional to 530.57, 732.18 and 297.70 is: 410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.57 : 732.18 = 297.70 : x
  2. Step 2: Convert to fraction form
    530.57/732.18 = 297.70/x
  3. Step 3: Cross multiply
    530.57x = 732.18 × 297.70
  4. Step 4: Simplify right side
    530.57x = 217,969.99
  5. Step 5: Solve for x
    x = 217,969.99/530.57
  6. Step 6: Final answer
    x = 410.82

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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.