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Finding the Fourth Proportional to 385,059.42, 577,466.28 and 132,278.96

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Solution

The fourth proportional to 385,059.42, 577,466.28 and 132,278.96 is: 198,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,059.42 : 577,466.28 = 132,278.96 : x
  2. Step 2: Convert to fraction form
    385,059.42/577,466.28 = 132,278.96/x
  3. Step 3: Cross multiply
    385,059.42x = 577,466.28 × 132,278.96
  4. Step 4: Simplify right side
    385,059.42x = 76,386,637,148.89
  5. Step 5: Solve for x
    x = 76,386,637,148.89/385,059.42
  6. Step 6: Final answer
    x = 198,376.23

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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.