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Finding the Fourth Proportional to 356,184.48, 491,529.96 and 203,218.68

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Solution

The fourth proportional to 356,184.48, 491,529.96 and 203,218.68 is: 280,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,184.48 : 491,529.96 = 203,218.68 : x
  2. Step 2: Convert to fraction form
    356,184.48/491,529.96 = 203,218.68/x
  3. Step 3: Cross multiply
    356,184.48x = 491,529.96 × 203,218.68
  4. Step 4: Simplify right side
    356,184.48x = 99,888,069,651.65
  5. Step 5: Solve for x
    x = 99,888,069,651.65/356,184.48
  6. Step 6: Final answer
    x = 280,439.14

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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.