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Finding the Fourth Proportional to 447,585.42, 617,675.76 and 243,642.21

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Solution

The fourth proportional to 447,585.42, 617,675.76 and 243,642.21 is: 336,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,585.42 : 617,675.76 = 243,642.21 : x
  2. Step 2: Convert to fraction form
    447,585.42/617,675.76 = 243,642.21/x
  3. Step 3: Cross multiply
    447,585.42x = 617,675.76 × 243,642.21
  4. Step 4: Simplify right side
    447,585.42x = 150,491,887,229.83
  5. Step 5: Solve for x
    x = 150,491,887,229.83/447,585.42
  6. Step 6: Final answer
    x = 336,230.54

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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.