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Finding the Fourth Proportional to 508,105.44, 762,158.48 and 129,054.60

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Solution

The fourth proportional to 508,105.44, 762,158.48 and 129,054.60 is: 193,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,105.44 : 762,158.48 = 129,054.60 : x
  2. Step 2: Convert to fraction form
    508,105.44/762,158.48 = 129,054.60/x
  3. Step 3: Cross multiply
    508,105.44x = 762,158.48 × 129,054.60
  4. Step 4: Simplify right side
    508,105.44x = 98,360,057,127.74
  5. Step 5: Solve for x
    x = 98,360,057,127.74/508,105.44
  6. Step 6: Final answer
    x = 193,581.98

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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.