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Finding the Fourth Proportional to 447,377.76, 617,362.68 and 243,429.48

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Solution

The fourth proportional to 447,377.76, 617,362.68 and 243,429.48 is: 335,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,377.76 : 617,362.68 = 243,429.48 : x
  2. Step 2: Convert to fraction form
    447,377.76/617,362.68 = 243,429.48/x
  3. Step 3: Cross multiply
    447,377.76x = 617,362.68 × 243,429.48
  4. Step 4: Simplify right side
    447,377.76x = 150,284,276,163.81
  5. Step 5: Solve for x
    x = 150,284,276,163.81/447,377.76
  6. Step 6: Final answer
    x = 335,922.55

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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.