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Finding the Fourth Proportional to 447,294.67, 617,268.11 and 243,345.55

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Solution

The fourth proportional to 447,294.67, 617,268.11 and 243,345.55 is: 335,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,294.67 : 617,268.11 = 243,345.55 : x
  2. Step 2: Convert to fraction form
    447,294.67/617,268.11 = 243,345.55/x
  3. Step 3: Cross multiply
    447,294.67x = 617,268.11 × 243,345.55
  4. Step 4: Simplify right side
    447,294.67x = 150,209,443,422.34
  5. Step 5: Solve for x
    x = 150,209,443,422.34/447,294.67
  6. Step 6: Final answer
    x = 335,817.65

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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.