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Finding the Fourth Proportional to 353,246.89, 487,493.56 and 202,373.05

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Solution

The fourth proportional to 353,246.89, 487,493.56 and 202,373.05 is: 279,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,246.89 : 487,493.56 = 202,373.05 : x
  2. Step 2: Convert to fraction form
    353,246.89/487,493.56 = 202,373.05/x
  3. Step 3: Cross multiply
    353,246.89x = 487,493.56 × 202,373.05
  4. Step 4: Simplify right side
    353,246.89x = 98,655,558,592.56
  5. Step 5: Solve for x
    x = 98,655,558,592.56/353,246.89
  6. Step 6: Final answer
    x = 279,282.17

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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.