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Finding the Fourth Proportional to 447,102.88, 617,006.12 and 243,155.72

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Solution

The fourth proportional to 447,102.88, 617,006.12 and 243,155.72 is: 335,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,102.88 : 617,006.12 = 243,155.72 : x
  2. Step 2: Convert to fraction form
    447,102.88/617,006.12 = 243,155.72/x
  3. Step 3: Cross multiply
    447,102.88x = 617,006.12 × 243,155.72
  4. Step 4: Simplify right side
    447,102.88x = 150,028,567,353.01
  5. Step 5: Solve for x
    x = 150,028,567,353.01/447,102.88
  6. Step 6: Final answer
    x = 335,557.15

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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.