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Finding the Fourth Proportional to 461,908, 637,435.04 and 249,940

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Solution

The fourth proportional to 461,908, 637,435.04 and 249,940 is: 344,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,908 : 637,435.04 = 249,940 : x
  2. Step 2: Convert to fraction form
    461,908/637,435.04 = 249,940/x
  3. Step 3: Cross multiply
    461,908x = 637,435.04 × 249,940
  4. Step 4: Simplify right side
    461,908x = 159,320,513,897.60
  5. Step 5: Solve for x
    x = 159,320,513,897.60/461,908
  6. Step 6: Final answer
    x = 344,918.28

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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.