Home / 291,960.09-438,113.07-123,471.18

Finding the Fourth Proportional to 291,960.09, 438,113.07 and 123,471.18

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Solution

The fourth proportional to 291,960.09, 438,113.07 and 123,471.18 is: 185,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,960.09 : 438,113.07 = 123,471.18 : x
  2. Step 2: Convert to fraction form
    291,960.09/438,113.07 = 123,471.18/x
  3. Step 3: Cross multiply
    291,960.09x = 438,113.07 × 123,471.18
  4. Step 4: Simplify right side
    291,960.09x = 54,094,337,726.32
  5. Step 5: Solve for x
    x = 54,094,337,726.32/291,960.09
  6. Step 6: Final answer
    x = 185,279.90

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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.