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Finding the Fourth Proportional to 447,302.80, 617,282.76 and 243,354.88

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Solution

The fourth proportional to 447,302.80, 617,282.76 and 243,354.88 is: 335,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,302.80 : 617,282.76 = 243,354.88 : x
  2. Step 2: Convert to fraction form
    447,302.80/617,282.76 = 243,354.88/x
  3. Step 3: Cross multiply
    447,302.80x = 617,282.76 × 243,354.88
  4. Step 4: Simplify right side
    447,302.80x = 150,218,771,985.87
  5. Step 5: Solve for x
    x = 150,218,771,985.87/447,302.80
  6. Step 6: Final answer
    x = 335,832.40

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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.