Home / 280,864.28-421,402.82-168,622.88

Finding the Fourth Proportional to 280,864.28, 421,402.82 and 168,622.88

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Solution

The fourth proportional to 280,864.28, 421,402.82 and 168,622.88 is: 252,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,864.28 : 421,402.82 = 168,622.88 : x
  2. Step 2: Convert to fraction form
    280,864.28/421,402.82 = 168,622.88/x
  3. Step 3: Cross multiply
    280,864.28x = 421,402.82 × 168,622.88
  4. Step 4: Simplify right side
    280,864.28x = 71,058,157,148.52
  5. Step 5: Solve for x
    x = 71,058,157,148.52/280,864.28
  6. Step 6: Final answer
    x = 252,998.20

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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.