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Finding the Fourth Proportional to 150,899.92, 208,247.52 and 90,480.40

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Solution

The fourth proportional to 150,899.92, 208,247.52 and 90,480.40 is: 124,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,899.92 : 208,247.52 = 90,480.40 : x
  2. Step 2: Convert to fraction form
    150,899.92/208,247.52 = 90,480.40/x
  3. Step 3: Cross multiply
    150,899.92x = 208,247.52 × 90,480.40
  4. Step 4: Simplify right side
    150,899.92x = 18,842,318,908.61
  5. Step 5: Solve for x
    x = 18,842,318,908.61/150,899.92
  6. Step 6: Final answer
    x = 124,866.33

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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.