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Finding the Fourth Proportional to 221,254.80, 331,882.20 and 146,459.40

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Solution

The fourth proportional to 221,254.80, 331,882.20 and 146,459.40 is: 219,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,254.80 : 331,882.20 = 146,459.40 : x
  2. Step 2: Convert to fraction form
    221,254.80/331,882.20 = 146,459.40/x
  3. Step 3: Cross multiply
    221,254.80x = 331,882.20 × 146,459.40
  4. Step 4: Simplify right side
    221,254.80x = 48,607,267,882.68
  5. Step 5: Solve for x
    x = 48,607,267,882.68/221,254.80
  6. Step 6: Final answer
    x = 219,689.10

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1.5x scale

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.