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Finding the Fourth Proportional to 191,488.76, 287,274.42 and 95,478.32

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Solution

The fourth proportional to 191,488.76, 287,274.42 and 95,478.32 is: 143,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,488.76 : 287,274.42 = 95,478.32 : x
  2. Step 2: Convert to fraction form
    191,488.76/287,274.42 = 95,478.32/x
  3. Step 3: Cross multiply
    191,488.76x = 287,274.42 × 95,478.32
  4. Step 4: Simplify right side
    191,488.76x = 27,428,479,000.57
  5. Step 5: Solve for x
    x = 27,428,479,000.57/191,488.76
  6. Step 6: Final answer
    x = 143,238.07

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1.5x scale

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.