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Finding the Fourth Proportional to 246,510.72, 369,821.40 and 78,041.12

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Solution

The fourth proportional to 246,510.72, 369,821.40 and 78,041.12 is: 117,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,510.72 : 369,821.40 = 78,041.12 : x
  2. Step 2: Convert to fraction form
    246,510.72/369,821.40 = 78,041.12/x
  3. Step 3: Cross multiply
    246,510.72x = 369,821.40 × 78,041.12
  4. Step 4: Simplify right side
    246,510.72x = 28,861,276,255.97
  5. Step 5: Solve for x
    x = 28,861,276,255.97/246,510.72
  6. Step 6: Final answer
    x = 117,079.19

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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.