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Finding the Fourth Proportional to 248,472.30, 372,711.69 and 70,985.10

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Solution

The fourth proportional to 248,472.30, 372,711.69 and 70,985.10 is: 106,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,472.30 : 372,711.69 = 70,985.10 : x
  2. Step 2: Convert to fraction form
    248,472.30/372,711.69 = 70,985.10/x
  3. Step 3: Cross multiply
    248,472.30x = 372,711.69 × 70,985.10
  4. Step 4: Simplify right side
    248,472.30x = 26,456,976,585.82
  5. Step 5: Solve for x
    x = 26,456,976,585.82/248,472.30
  6. Step 6: Final answer
    x = 106,478.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.