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Finding the Fourth Proportional to 442,302.12, 610,353.90 and 251,289

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Solution

The fourth proportional to 442,302.12, 610,353.90 and 251,289 is: 346,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,302.12 : 610,353.90 = 251,289 : x
  2. Step 2: Convert to fraction form
    442,302.12/610,353.90 = 251,289/x
  3. Step 3: Cross multiply
    442,302.12x = 610,353.90 × 251,289
  4. Step 4: Simplify right side
    442,302.12x = 153,375,221,177.10
  5. Step 5: Solve for x
    x = 153,375,221,177.10/442,302.12
  6. Step 6: Final answer
    x = 346,765.74

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1.5x scale

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.