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Finding the Fourth Proportional to 180,234.28, 248,720.71 and 99,660.03

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Solution

The fourth proportional to 180,234.28, 248,720.71 and 99,660.03 is: 137,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,234.28 : 248,720.71 = 99,660.03 : x
  2. Step 2: Convert to fraction form
    180,234.28/248,720.71 = 99,660.03/x
  3. Step 3: Cross multiply
    180,234.28x = 248,720.71 × 99,660.03
  4. Step 4: Simplify right side
    180,234.28x = 24,787,513,420.22
  5. Step 5: Solve for x
    x = 24,787,513,420.22/180,234.28
  6. Step 6: Final answer
    x = 137,529.41

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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.