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Finding the Fourth Proportional to 461,540, 636,925.20 and 249,572

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Solution

The fourth proportional to 461,540, 636,925.20 and 249,572 is: 344,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,540 : 636,925.20 = 249,572 : x
  2. Step 2: Convert to fraction form
    461,540/636,925.20 = 249,572/x
  3. Step 3: Cross multiply
    461,540x = 636,925.20 × 249,572
  4. Step 4: Simplify right side
    461,540x = 158,958,696,014.40
  5. Step 5: Solve for x
    x = 158,958,696,014.40/461,540
  6. Step 6: Final answer
    x = 344,409.36

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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.