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Finding the Fourth Proportional to 311,248.20, 466,216.20 and 258,760.20

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Solution

The fourth proportional to 311,248.20, 466,216.20 and 258,760.20 is: 387,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,248.20 : 466,216.20 = 258,760.20 : x
  2. Step 2: Convert to fraction form
    311,248.20/466,216.20 = 258,760.20/x
  3. Step 3: Cross multiply
    311,248.20x = 466,216.20 × 258,760.20
  4. Step 4: Simplify right side
    311,248.20x = 120,638,197,155.24
  5. Step 5: Solve for x
    x = 120,638,197,155.24/311,248.20
  6. Step 6: Final answer
    x = 387,594.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.