Home / 291,192.55-436,789.12-91,530.38

Finding the Fourth Proportional to 291,192.55, 436,789.12 and 91,530.38

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Solution

The fourth proportional to 291,192.55, 436,789.12 and 91,530.38 is: 137,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,192.55 : 436,789.12 = 91,530.38 : x
  2. Step 2: Convert to fraction form
    291,192.55/436,789.12 = 91,530.38/x
  3. Step 3: Cross multiply
    291,192.55x = 436,789.12 × 91,530.38
  4. Step 4: Simplify right side
    291,192.55x = 39,979,474,133.47
  5. Step 5: Solve for x
    x = 39,979,474,133.47/291,192.55
  6. Step 6: Final answer
    x = 137,295.66

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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.