Home / 291,876.10-438,008.55-134,023.30

Finding the Fourth Proportional to 291,876.10, 438,008.55 and 134,023.30

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Solution

The fourth proportional to 291,876.10, 438,008.55 and 134,023.30 is: 201,124.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,876.10 : 438,008.55 = 134,023.30 : x
  2. Step 2: Convert to fraction form
    291,876.10/438,008.55 = 134,023.30/x
  3. Step 3: Cross multiply
    291,876.10x = 438,008.55 × 134,023.30
  4. Step 4: Simplify right side
    291,876.10x = 58,703,351,299.22
  5. Step 5: Solve for x
    x = 58,703,351,299.22/291,876.10
  6. Step 6: Final answer
    x = 201,124.21

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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.