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Finding the Fourth Proportional to 220,587, 330,354 and 126,895.92

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Solution

The fourth proportional to 220,587, 330,354 and 126,895.92 is: 190,041.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,587 : 330,354 = 126,895.92 : x
  2. Step 2: Convert to fraction form
    220,587/330,354 = 126,895.92/x
  3. Step 3: Cross multiply
    220,587x = 330,354 × 126,895.92
  4. Step 4: Simplify right side
    220,587x = 41,920,574,755.68
  5. Step 5: Solve for x
    x = 41,920,574,755.68/220,587
  6. Step 6: Final answer
    x = 190,041.00

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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.