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Finding the Fourth Proportional to 249,855.25, 344,800.25 and 136,680.43

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Solution

The fourth proportional to 249,855.25, 344,800.25 and 136,680.43 is: 188,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,855.25 : 344,800.25 = 136,680.43 : x
  2. Step 2: Convert to fraction form
    249,855.25/344,800.25 = 136,680.43/x
  3. Step 3: Cross multiply
    249,855.25x = 344,800.25 × 136,680.43
  4. Step 4: Simplify right side
    249,855.25x = 47,127,446,434.11
  5. Step 5: Solve for x
    x = 47,127,446,434.11/249,855.25
  6. Step 6: Final answer
    x = 188,619.00

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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.