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Finding the Fourth Proportional to 486,537.40, 729,222.90 and 249,758.20

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Solution

The fourth proportional to 486,537.40, 729,222.90 and 249,758.20 is: 374,337.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,537.40 : 729,222.90 = 249,758.20 : x
  2. Step 2: Convert to fraction form
    486,537.40/729,222.90 = 249,758.20/x
  3. Step 3: Cross multiply
    486,537.40x = 729,222.90 × 249,758.20
  4. Step 4: Simplify right side
    486,537.40x = 182,129,398,902.78
  5. Step 5: Solve for x
    x = 182,129,398,902.78/486,537.40
  6. Step 6: Final answer
    x = 374,337.92

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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.