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Finding the Fourth Proportional to 215,565.88, 323,387.70 and 97,292.92

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Solution

The fourth proportional to 215,565.88, 323,387.70 and 97,292.92 is: 145,956.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,565.88 : 323,387.70 = 97,292.92 : x
  2. Step 2: Convert to fraction form
    215,565.88/323,387.70 = 97,292.92/x
  3. Step 3: Cross multiply
    215,565.88x = 323,387.70 × 97,292.92
  4. Step 4: Simplify right side
    215,565.88x = 31,463,333,625.08
  5. Step 5: Solve for x
    x = 31,463,333,625.08/215,565.88
  6. Step 6: Final answer
    x = 145,956.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.