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Finding the Fourth Proportional to 339,590.72, 508,545.31 and 249,419.60

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Solution

The fourth proportional to 339,590.72, 508,545.31 and 249,419.60 is: 373,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,590.72 : 508,545.31 = 249,419.60 : x
  2. Step 2: Convert to fraction form
    339,590.72/508,545.31 = 249,419.60/x
  3. Step 3: Cross multiply
    339,590.72x = 508,545.31 × 249,419.60
  4. Step 4: Simplify right side
    339,590.72x = 126,841,168,449.89
  5. Step 5: Solve for x
    x = 126,841,168,449.89/339,590.72
  6. Step 6: Final answer
    x = 373,511.88

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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.