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Finding the Fourth Proportional to 145,490.97, 218,236.74 and 40,310.22

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Solution

The fourth proportional to 145,490.97, 218,236.74 and 40,310.22 is: 60,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,490.97 : 218,236.74 = 40,310.22 : x
  2. Step 2: Convert to fraction form
    145,490.97/218,236.74 = 40,310.22/x
  3. Step 3: Cross multiply
    145,490.97x = 218,236.74 × 40,310.22
  4. Step 4: Simplify right side
    145,490.97x = 8,797,171,001.48
  5. Step 5: Solve for x
    x = 8,797,171,001.48/145,490.97
  6. Step 6: Final answer
    x = 60,465.41

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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.