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Finding the Fourth Proportional to 257,063.68, 385,521.48 and 88,577.20

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Solution

The fourth proportional to 257,063.68, 385,521.48 and 88,577.20 is: 132,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,063.68 : 385,521.48 = 88,577.20 : x
  2. Step 2: Convert to fraction form
    257,063.68/385,521.48 = 88,577.20/x
  3. Step 3: Cross multiply
    257,063.68x = 385,521.48 × 88,577.20
  4. Step 4: Simplify right side
    257,063.68x = 34,148,413,238.26
  5. Step 5: Solve for x
    x = 34,148,413,238.26/257,063.68
  6. Step 6: Final answer
    x = 132,840.29

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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.