Home / 229,543.20-316,690.56-143,443.44

Finding the Fourth Proportional to 229,543.20, 316,690.56 and 143,443.44

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Solution

The fourth proportional to 229,543.20, 316,690.56 and 143,443.44 is: 197,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,543.20 : 316,690.56 = 143,443.44 : x
  2. Step 2: Convert to fraction form
    229,543.20/316,690.56 = 143,443.44/x
  3. Step 3: Cross multiply
    229,543.20x = 316,690.56 × 143,443.44
  4. Step 4: Simplify right side
    229,543.20x = 45,427,183,341.93
  5. Step 5: Solve for x
    x = 45,427,183,341.93/229,543.20
  6. Step 6: Final answer
    x = 197,902.54

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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.