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Finding the Fourth Proportional to 247,397.82, 341,417.34 and 145,421.88

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Solution

The fourth proportional to 247,397.82, 341,417.34 and 145,421.88 is: 200,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,397.82 : 341,417.34 = 145,421.88 : x
  2. Step 2: Convert to fraction form
    247,397.82/341,417.34 = 145,421.88/x
  3. Step 3: Cross multiply
    247,397.82x = 341,417.34 × 145,421.88
  4. Step 4: Simplify right side
    247,397.82x = 49,649,551,447.40
  5. Step 5: Solve for x
    x = 49,649,551,447.40/247,397.82
  6. Step 6: Final answer
    x = 200,687.10

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1.5x scale

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.