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Finding the Fourth Proportional to 249,467.31, 344,264.13 and 136,290.87

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Solution

The fourth proportional to 249,467.31, 344,264.13 and 136,290.87 is: 188,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,467.31 : 344,264.13 = 136,290.87 : x
  2. Step 2: Convert to fraction form
    249,467.31/344,264.13 = 136,290.87/x
  3. Step 3: Cross multiply
    249,467.31x = 344,264.13 × 136,290.87
  4. Step 4: Simplify right side
    249,467.31x = 46,920,057,787.49
  5. Step 5: Solve for x
    x = 46,920,057,787.49/249,467.31
  6. Step 6: Final answer
    x = 188,080.99

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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.