Home / 447,206.24-617,158.40-243,272

Finding the Fourth Proportional to 447,206.24, 617,158.40 and 243,272

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Solution

The fourth proportional to 447,206.24, 617,158.40 and 243,272 is: 335,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,206.24 : 617,158.40 = 243,272 : x
  2. Step 2: Convert to fraction form
    447,206.24/617,158.40 = 243,272/x
  3. Step 3: Cross multiply
    447,206.24x = 617,158.40 × 243,272
  4. Step 4: Simplify right side
    447,206.24x = 150,137,358,284.80
  5. Step 5: Solve for x
    x = 150,137,358,284.80/447,206.24
  6. Step 6: Final answer
    x = 335,722.86

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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.