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Finding the Fourth Proportional to 386,375.10, 579,292.65 and 228,522.30

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Solution

The fourth proportional to 386,375.10, 579,292.65 and 228,522.30 is: 342,623.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,375.10 : 579,292.65 = 228,522.30 : x
  2. Step 2: Convert to fraction form
    386,375.10/579,292.65 = 228,522.30/x
  3. Step 3: Cross multiply
    386,375.10x = 579,292.65 × 228,522.30
  4. Step 4: Simplify right side
    386,375.10x = 132,381,288,751.10
  5. Step 5: Solve for x
    x = 132,381,288,751.10/386,375.10
  6. Step 6: Final answer
    x = 342,623.76

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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.