Home / 254,386.72-381,594.12-76,889.26

Finding the Fourth Proportional to 254,386.72, 381,594.12 and 76,889.26

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Solution

The fourth proportional to 254,386.72, 381,594.12 and 76,889.26 is: 115,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,386.72 : 381,594.12 = 76,889.26 : x
  2. Step 2: Convert to fraction form
    254,386.72/381,594.12 = 76,889.26/x
  3. Step 3: Cross multiply
    254,386.72x = 381,594.12 × 76,889.26
  4. Step 4: Simplify right side
    254,386.72x = 29,340,489,507.15
  5. Step 5: Solve for x
    x = 29,340,489,507.15/254,386.72
  6. Step 6: Final answer
    x = 115,338.13

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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.