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Finding the Fourth Proportional to 530.48, 732.30 and 503.21

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Solution

The fourth proportional to 530.48, 732.30 and 503.21 is: 694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.48 : 732.30 = 503.21 : x
  2. Step 2: Convert to fraction form
    530.48/732.30 = 503.21/x
  3. Step 3: Cross multiply
    530.48x = 732.30 × 503.21
  4. Step 4: Simplify right side
    530.48x = 368,500.68
  5. Step 5: Solve for x
    x = 368,500.68/530.48
  6. Step 6: Final answer
    x = 694.66

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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.