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Finding the Fourth Proportional to 513,721.98, 770,254.92 and 246,951.72

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Solution

The fourth proportional to 513,721.98, 770,254.92 and 246,951.72 is: 370,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,721.98 : 770,254.92 = 246,951.72 : x
  2. Step 2: Convert to fraction form
    513,721.98/770,254.92 = 246,951.72/x
  3. Step 3: Cross multiply
    513,721.98x = 770,254.92 × 246,951.72
  4. Step 4: Simplify right side
    513,721.98x = 190,215,777,332.46
  5. Step 5: Solve for x
    x = 190,215,777,332.46/513,721.98
  6. Step 6: Final answer
    x = 370,269.88

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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.