Home / 264,712.38-397,117.78-87,231.86

Finding the Fourth Proportional to 264,712.38, 397,117.78 and 87,231.86

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Solution

The fourth proportional to 264,712.38, 397,117.78 and 87,231.86 is: 130,864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,712.38 : 397,117.78 = 87,231.86 : x
  2. Step 2: Convert to fraction form
    264,712.38/397,117.78 = 87,231.86/x
  3. Step 3: Cross multiply
    264,712.38x = 397,117.78 × 87,231.86
  4. Step 4: Simplify right side
    264,712.38x = 34,641,323,363.19
  5. Step 5: Solve for x
    x = 34,641,323,363.19/264,712.38
  6. Step 6: Final answer
    x = 130,864.01

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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.