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Finding the Fourth Proportional to 249,487.88, 344,293.27 and 136,311.44

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Solution

The fourth proportional to 249,487.88, 344,293.27 and 136,311.44 is: 188,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,487.88 : 344,293.27 = 136,311.44 : x
  2. Step 2: Convert to fraction form
    249,487.88/344,293.27 = 136,311.44/x
  3. Step 3: Cross multiply
    249,487.88x = 344,293.27 × 136,311.44
  4. Step 4: Simplify right side
    249,487.88x = 46,931,109,353.76
  5. Step 5: Solve for x
    x = 46,931,109,353.76/249,487.88
  6. Step 6: Final answer
    x = 188,109.78

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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.