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Finding the Fourth Proportional to 150,673.60, 207,952.80 and 87,006.40

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Solution

The fourth proportional to 150,673.60, 207,952.80 and 87,006.40 is: 120,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,673.60 : 207,952.80 = 87,006.40 : x
  2. Step 2: Convert to fraction form
    150,673.60/207,952.80 = 87,006.40/x
  3. Step 3: Cross multiply
    150,673.60x = 207,952.80 × 87,006.40
  4. Step 4: Simplify right side
    150,673.60x = 18,093,224,497.92
  5. Step 5: Solve for x
    x = 18,093,224,497.92/150,673.60
  6. Step 6: Final answer
    x = 120,082.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.