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Finding the Fourth Proportional to 508,906.80, 763,480.08 and 153,923.76

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Solution

The fourth proportional to 508,906.80, 763,480.08 and 153,923.76 is: 230,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,906.80 : 763,480.08 = 153,923.76 : x
  2. Step 2: Convert to fraction form
    508,906.80/763,480.08 = 153,923.76/x
  3. Step 3: Cross multiply
    508,906.80x = 763,480.08 × 153,923.76
  4. Step 4: Simplify right side
    508,906.80x = 117,517,724,598.70
  5. Step 5: Solve for x
    x = 117,517,724,598.70/508,906.80
  6. Step 6: Final answer
    x = 230,921.90

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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.