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Finding the Fourth Proportional to 508,102.77, 762,155.52 and 171,379.89

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Solution

The fourth proportional to 508,102.77, 762,155.52 and 171,379.89 is: 257,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,102.77 : 762,155.52 = 171,379.89 : x
  2. Step 2: Convert to fraction form
    508,102.77/762,155.52 = 171,379.89/x
  3. Step 3: Cross multiply
    508,102.77x = 762,155.52 × 171,379.89
  4. Step 4: Simplify right side
    508,102.77x = 130,618,129,180.49
  5. Step 5: Solve for x
    x = 130,618,129,180.49/508,102.77
  6. Step 6: Final answer
    x = 257,070.30

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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.