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Finding the Fourth Proportional to 249,381, 344,145.78 and 136,204.02

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Solution

The fourth proportional to 249,381, 344,145.78 and 136,204.02 is: 187,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,381 : 344,145.78 = 136,204.02 : x
  2. Step 2: Convert to fraction form
    249,381/344,145.78 = 136,204.02/x
  3. Step 3: Cross multiply
    249,381x = 344,145.78 × 136,204.02
  4. Step 4: Simplify right side
    249,381x = 46,874,038,702.04
  5. Step 5: Solve for x
    x = 46,874,038,702.04/249,381
  6. Step 6: Final answer
    x = 187,961.55

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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.