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Finding the Fourth Proportional to 203,434.44, 280,639.80 and 176,539.20

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Solution

The fourth proportional to 203,434.44, 280,639.80 and 176,539.20 is: 243,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,434.44 : 280,639.80 = 176,539.20 : x
  2. Step 2: Convert to fraction form
    203,434.44/280,639.80 = 176,539.20/x
  3. Step 3: Cross multiply
    203,434.44x = 280,639.80 × 176,539.20
  4. Step 4: Simplify right side
    203,434.44x = 49,543,925,780.16
  5. Step 5: Solve for x
    x = 49,543,925,780.16/203,434.44
  6. Step 6: Final answer
    x = 243,537.55

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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.