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Finding the Fourth Proportional to 294,860.64, 442,306.08 and 84,500.40

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Solution

The fourth proportional to 294,860.64, 442,306.08 and 84,500.40 is: 126,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,860.64 : 442,306.08 = 84,500.40 : x
  2. Step 2: Convert to fraction form
    294,860.64/442,306.08 = 84,500.40/x
  3. Step 3: Cross multiply
    294,860.64x = 442,306.08 × 84,500.40
  4. Step 4: Simplify right side
    294,860.64x = 37,375,040,682.43
  5. Step 5: Solve for x
    x = 37,375,040,682.43/294,860.64
  6. Step 6: Final answer
    x = 126,754.93

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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.