Home / 291,338.16-436,644.24-104,143.92

Finding the Fourth Proportional to 291,338.16, 436,644.24 and 104,143.92

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Solution

The fourth proportional to 291,338.16, 436,644.24 and 104,143.92 is: 156,086.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,338.16 : 436,644.24 = 104,143.92 : x
  2. Step 2: Convert to fraction form
    291,338.16/436,644.24 = 104,143.92/x
  3. Step 3: Cross multiply
    291,338.16x = 436,644.24 × 104,143.92
  4. Step 4: Simplify right side
    291,338.16x = 45,473,842,799.02
  5. Step 5: Solve for x
    x = 45,473,842,799.02/291,338.16
  6. Step 6: Final answer
    x = 156,086.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.