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Finding the Fourth Proportional to 257,273.10, 385,970.96 and 88,794.86

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Solution

The fourth proportional to 257,273.10, 385,970.96 and 88,794.86 is: 133,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,273.10 : 385,970.96 = 88,794.86 : x
  2. Step 2: Convert to fraction form
    257,273.10/385,970.96 = 88,794.86/x
  3. Step 3: Cross multiply
    257,273.10x = 385,970.96 × 88,794.86
  4. Step 4: Simplify right side
    257,273.10x = 34,272,237,357.27
  5. Step 5: Solve for x
    x = 34,272,237,357.27/257,273.10
  6. Step 6: Final answer
    x = 133,213.45

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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.