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Finding the Fourth Proportional to 385,091.20, 577,550.40 and 252,899.20

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Solution

The fourth proportional to 385,091.20, 577,550.40 and 252,899.20 is: 379,292.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,091.20 : 577,550.40 = 252,899.20 : x
  2. Step 2: Convert to fraction form
    385,091.20/577,550.40 = 252,899.20/x
  3. Step 3: Cross multiply
    385,091.20x = 577,550.40 × 252,899.20
  4. Step 4: Simplify right side
    385,091.20x = 146,062,034,119.68
  5. Step 5: Solve for x
    x = 146,062,034,119.68/385,091.20
  6. Step 6: Final answer
    x = 379,292.06

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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.