Home / 265,837.29-398,777.54-78,848.25

Finding the Fourth Proportional to 265,837.29, 398,777.54 and 78,848.25

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Solution

The fourth proportional to 265,837.29, 398,777.54 and 78,848.25 is: 118,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,837.29 : 398,777.54 = 78,848.25 : x
  2. Step 2: Convert to fraction form
    265,837.29/398,777.54 = 78,848.25/x
  3. Step 3: Cross multiply
    265,837.29x = 398,777.54 × 78,848.25
  4. Step 4: Simplify right side
    265,837.29x = 31,442,910,774.06
  5. Step 5: Solve for x
    x = 31,442,910,774.06/265,837.29
  6. Step 6: Final answer
    x = 118,278.78

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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.