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Finding the Fourth Proportional to 219,670.32, 303,149.88 and 134,737.20

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Solution

The fourth proportional to 219,670.32, 303,149.88 and 134,737.20 is: 185,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,670.32 : 303,149.88 = 134,737.20 : x
  2. Step 2: Convert to fraction form
    219,670.32/303,149.88 = 134,737.20/x
  3. Step 3: Cross multiply
    219,670.32x = 303,149.88 × 134,737.20
  4. Step 4: Simplify right side
    219,670.32x = 40,845,566,011.54
  5. Step 5: Solve for x
    x = 40,845,566,011.54/219,670.32
  6. Step 6: Final answer
    x = 185,940.30

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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.