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Finding the Fourth Proportional to 385,702.38, 576,207.94 and 249,658.12

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Solution

The fourth proportional to 385,702.38, 576,207.94 and 249,658.12 is: 372,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,702.38 : 576,207.94 = 249,658.12 : x
  2. Step 2: Convert to fraction form
    385,702.38/576,207.94 = 249,658.12/x
  3. Step 3: Cross multiply
    385,702.38x = 576,207.94 × 249,658.12
  4. Step 4: Simplify right side
    385,702.38x = 143,854,991,029.47
  5. Step 5: Solve for x
    x = 143,854,991,029.47/385,702.38
  6. Step 6: Final answer
    x = 372,968.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.