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Finding the Fourth Proportional to 443,995.82, 612,701.79 and 242,787.50

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Solution

The fourth proportional to 443,995.82, 612,701.79 and 242,787.50 is: 335,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,995.82 : 612,701.79 = 242,787.50 : x
  2. Step 2: Convert to fraction form
    443,995.82/612,701.79 = 242,787.50/x
  3. Step 3: Cross multiply
    443,995.82x = 612,701.79 × 242,787.50
  4. Step 4: Simplify right side
    443,995.82x = 148,756,335,839.63
  5. Step 5: Solve for x
    x = 148,756,335,839.63/443,995.82
  6. Step 6: Final answer
    x = 335,039.95

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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.