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Finding the Fourth Proportional to 191,755.28, 287,613.48 and 51,495.68

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Solution

The fourth proportional to 191,755.28, 287,613.48 and 51,495.68 is: 77,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,755.28 : 287,613.48 = 51,495.68 : x
  2. Step 2: Convert to fraction form
    191,755.28/287,613.48 = 51,495.68/x
  3. Step 3: Cross multiply
    191,755.28x = 287,613.48 × 51,495.68
  4. Step 4: Simplify right side
    191,755.28x = 14,810,851,729.77
  5. Step 5: Solve for x
    x = 14,810,851,729.77/191,755.28
  6. Step 6: Final answer
    x = 77,238.30

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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.