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Finding the Fourth Proportional to 447,291.94, 617,248.82 and 243,337.66

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Solution

The fourth proportional to 447,291.94, 617,248.82 and 243,337.66 is: 335,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,291.94 : 617,248.82 = 243,337.66 : x
  2. Step 2: Convert to fraction form
    447,291.94/617,248.82 = 243,337.66/x
  3. Step 3: Cross multiply
    447,291.94x = 617,248.82 × 243,337.66
  4. Step 4: Simplify right side
    447,291.94x = 150,199,883,496.56
  5. Step 5: Solve for x
    x = 150,199,883,496.56/447,291.94
  6. Step 6: Final answer
    x = 335,798.32

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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.