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Finding the Fourth Proportional to 378,471.83, 567,065.10 and 228,396.76

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Solution

The fourth proportional to 378,471.83, 567,065.10 and 228,396.76 is: 342,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,471.83 : 567,065.10 = 228,396.76 : x
  2. Step 2: Convert to fraction form
    378,471.83/567,065.10 = 228,396.76/x
  3. Step 3: Cross multiply
    378,471.83x = 567,065.10 × 228,396.76
  4. Step 4: Simplify right side
    378,471.83x = 129,515,831,549.08
  5. Step 5: Solve for x
    x = 129,515,831,549.08/378,471.83
  6. Step 6: Final answer
    x = 342,207.32

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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.