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Finding the Fourth Proportional to 253,079.48, 379,542.53 and 133,071.77

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Solution

The fourth proportional to 253,079.48, 379,542.53 and 133,071.77 is: 199,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,079.48 : 379,542.53 = 133,071.77 : x
  2. Step 2: Convert to fraction form
    253,079.48/379,542.53 = 133,071.77/x
  3. Step 3: Cross multiply
    253,079.48x = 379,542.53 × 133,071.77
  4. Step 4: Simplify right side
    253,079.48x = 50,506,393,694.31
  5. Step 5: Solve for x
    x = 50,506,393,694.31/253,079.48
  6. Step 6: Final answer
    x = 199,567.32

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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.