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Finding the Fourth Proportional to 249,700, 344,586.12 and 136,523.68

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Solution

The fourth proportional to 249,700, 344,586.12 and 136,523.68 is: 188,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,700 : 344,586.12 = 136,523.68 : x
  2. Step 2: Convert to fraction form
    249,700/344,586.12 = 136,523.68/x
  3. Step 3: Cross multiply
    249,700x = 344,586.12 × 136,523.68
  4. Step 4: Simplify right side
    249,700x = 47,044,165,179.32
  5. Step 5: Solve for x
    x = 47,044,165,179.32/249,700
  6. Step 6: Final answer
    x = 188,402.74

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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.