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Finding the Fourth Proportional to 418,482.55, 577,499.07 and 227,500.75

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Solution

The fourth proportional to 418,482.55, 577,499.07 and 227,500.75 is: 313,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,482.55 : 577,499.07 = 227,500.75 : x
  2. Step 2: Convert to fraction form
    418,482.55/577,499.07 = 227,500.75/x
  3. Step 3: Cross multiply
    418,482.55x = 577,499.07 × 227,500.75
  4. Step 4: Simplify right side
    418,482.55x = 131,381,471,549.30
  5. Step 5: Solve for x
    x = 131,381,471,549.30/418,482.55
  6. Step 6: Final answer
    x = 313,947.31

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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.