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Finding the Fourth Proportional to 191,480.93, 287,222.95 and 65,149.88

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Solution

The fourth proportional to 191,480.93, 287,222.95 and 65,149.88 is: 97,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,480.93 : 287,222.95 = 65,149.88 : x
  2. Step 2: Convert to fraction form
    191,480.93/287,222.95 = 65,149.88/x
  3. Step 3: Cross multiply
    191,480.93x = 287,222.95 × 65,149.88
  4. Step 4: Simplify right side
    191,480.93x = 18,712,540,725.75
  5. Step 5: Solve for x
    x = 18,712,540,725.75/191,480.93
  6. Step 6: Final answer
    x = 97,725.35

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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.