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Finding the Fourth Proportional to 247,721.98, 341,797.76 and 145,751.88

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Solution

The fourth proportional to 247,721.98, 341,797.76 and 145,751.88 is: 201,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,721.98 : 341,797.76 = 145,751.88 : x
  2. Step 2: Convert to fraction form
    247,721.98/341,797.76 = 145,751.88/x
  3. Step 3: Cross multiply
    247,721.98x = 341,797.76 × 145,751.88
  4. Step 4: Simplify right side
    247,721.98x = 49,817,666,099.79
  5. Step 5: Solve for x
    x = 49,817,666,099.79/247,721.98
  6. Step 6: Final answer
    x = 201,103.13

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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.