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Finding the Fourth Proportional to 296,871.80, 445,307.70 and 178,482.20

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Solution

The fourth proportional to 296,871.80, 445,307.70 and 178,482.20 is: 267,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,871.80 : 445,307.70 = 178,482.20 : x
  2. Step 2: Convert to fraction form
    296,871.80/445,307.70 = 178,482.20/x
  3. Step 3: Cross multiply
    296,871.80x = 445,307.70 × 178,482.20
  4. Step 4: Simplify right side
    296,871.80x = 79,479,497,972.94
  5. Step 5: Solve for x
    x = 79,479,497,972.94/296,871.80
  6. Step 6: Final answer
    x = 267,723.30

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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.