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Finding the Fourth Proportional to 257,165.98, 385,774.36 and 88,664.15

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Solution

The fourth proportional to 257,165.98, 385,774.36 and 88,664.15 is: 133,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,165.98 : 385,774.36 = 88,664.15 : x
  2. Step 2: Convert to fraction form
    257,165.98/385,774.36 = 88,664.15/x
  3. Step 3: Cross multiply
    257,165.98x = 385,774.36 × 88,664.15
  4. Step 4: Simplify right side
    257,165.98x = 34,204,355,721.19
  5. Step 5: Solve for x
    x = 34,204,355,721.19/257,165.98
  6. Step 6: Final answer
    x = 133,004.98

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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.