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Finding the Fourth Proportional to 150,218.66, 207,299.84 and 90,602.66

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Solution

The fourth proportional to 150,218.66, 207,299.84 and 90,602.66 is: 125,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,218.66 : 207,299.84 = 90,602.66 : x
  2. Step 2: Convert to fraction form
    150,218.66/207,299.84 = 90,602.66/x
  3. Step 3: Cross multiply
    150,218.66x = 207,299.84 × 90,602.66
  4. Step 4: Simplify right side
    150,218.66x = 18,781,916,921.57
  5. Step 5: Solve for x
    x = 18,781,916,921.57/150,218.66
  6. Step 6: Final answer
    x = 125,030.52

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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.