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Finding the Fourth Proportional to 247,897.16, 342,087 and 140,460.92

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Solution

The fourth proportional to 247,897.16, 342,087 and 140,460.92 is: 193,829.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,897.16 : 342,087 = 140,460.92 : x
  2. Step 2: Convert to fraction form
    247,897.16/342,087 = 140,460.92/x
  3. Step 3: Cross multiply
    247,897.16x = 342,087 × 140,460.92
  4. Step 4: Simplify right side
    247,897.16x = 48,049,854,740.04
  5. Step 5: Solve for x
    x = 48,049,854,740.04/247,897.16
  6. Step 6: Final answer
    x = 193,829.79

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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.