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Finding the Fourth Proportional to 228,532.58, 315,337.47 and 143,589.50

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Solution

The fourth proportional to 228,532.58, 315,337.47 and 143,589.50 is: 198,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,532.58 : 315,337.47 = 143,589.50 : x
  2. Step 2: Convert to fraction form
    228,532.58/315,337.47 = 143,589.50/x
  3. Step 3: Cross multiply
    228,532.58x = 315,337.47 × 143,589.50
  4. Step 4: Simplify right side
    228,532.58x = 45,279,149,648.57
  5. Step 5: Solve for x
    x = 45,279,149,648.57/228,532.58
  6. Step 6: Final answer
    x = 198,129.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.