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Finding the Fourth Proportional to 437,728.80, 656,228.70 and 185,203.20

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Solution

The fourth proportional to 437,728.80, 656,228.70 and 185,203.20 is: 277,650.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,728.80 : 656,228.70 = 185,203.20 : x
  2. Step 2: Convert to fraction form
    437,728.80/656,228.70 = 185,203.20/x
  3. Step 3: Cross multiply
    437,728.80x = 656,228.70 × 185,203.20
  4. Step 4: Simplify right side
    437,728.80x = 121,535,655,171.84
  5. Step 5: Solve for x
    x = 121,535,655,171.84/437,728.80
  6. Step 6: Final answer
    x = 277,650.58

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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.