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Finding the Fourth Proportional to 220,523.31, 330,894.27 and 87,400.62

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Solution

The fourth proportional to 220,523.31, 330,894.27 and 87,400.62 is: 131,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,523.31 : 330,894.27 = 87,400.62 : x
  2. Step 2: Convert to fraction form
    220,523.31/330,894.27 = 87,400.62/x
  3. Step 3: Cross multiply
    220,523.31x = 330,894.27 × 87,400.62
  4. Step 4: Simplify right side
    220,523.31x = 28,920,364,352.45
  5. Step 5: Solve for x
    x = 28,920,364,352.45/220,523.31
  6. Step 6: Final answer
    x = 131,144.25

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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.