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Finding the Fourth Proportional to 437,430.75, 656,146.53 and 121,896.06

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Solution

The fourth proportional to 437,430.75, 656,146.53 and 121,896.06 is: 182,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,430.75 : 656,146.53 = 121,896.06 : x
  2. Step 2: Convert to fraction form
    437,430.75/656,146.53 = 121,896.06/x
  3. Step 3: Cross multiply
    437,430.75x = 656,146.53 × 121,896.06
  4. Step 4: Simplify right side
    437,430.75x = 79,981,676,789.67
  5. Step 5: Solve for x
    x = 79,981,676,789.67/437,430.75
  6. Step 6: Final answer
    x = 182,844.20

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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.