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Finding the Fourth Proportional to 353,378.92, 487,864.02 and 232,870.36

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Solution

The fourth proportional to 353,378.92, 487,864.02 and 232,870.36 is: 321,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,378.92 : 487,864.02 = 232,870.36 : x
  2. Step 2: Convert to fraction form
    353,378.92/487,864.02 = 232,870.36/x
  3. Step 3: Cross multiply
    353,378.92x = 487,864.02 × 232,870.36
  4. Step 4: Simplify right side
    353,378.92x = 113,609,069,968.45
  5. Step 5: Solve for x
    x = 113,609,069,968.45/353,378.92
  6. Step 6: Final answer
    x = 321,493.62

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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.