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Finding the Fourth Proportional to 251,502.32, 377,278.08 and 91,621.68

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Solution

The fourth proportional to 251,502.32, 377,278.08 and 91,621.68 is: 137,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,502.32 : 377,278.08 = 91,621.68 : x
  2. Step 2: Convert to fraction form
    251,502.32/377,278.08 = 91,621.68/x
  3. Step 3: Cross multiply
    251,502.32x = 377,278.08 × 91,621.68
  4. Step 4: Simplify right side
    251,502.32x = 34,566,851,516.77
  5. Step 5: Solve for x
    x = 34,566,851,516.77/251,502.32
  6. Step 6: Final answer
    x = 137,441.48

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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.