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Finding the Fourth Proportional to 443,995.32, 612,701.10 and 242,787

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Solution

The fourth proportional to 443,995.32, 612,701.10 and 242,787 is: 335,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,995.32 : 612,701.10 = 242,787 : x
  2. Step 2: Convert to fraction form
    443,995.32/612,701.10 = 242,787/x
  3. Step 3: Cross multiply
    443,995.32x = 612,701.10 × 242,787
  4. Step 4: Simplify right side
    443,995.32x = 148,755,861,965.70
  5. Step 5: Solve for x
    x = 148,755,861,965.70/443,995.32
  6. Step 6: Final answer
    x = 335,039.26

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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.