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Finding the Fourth Proportional to 265,985.76, 398,974.76 and 123,751.48

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Solution

The fourth proportional to 265,985.76, 398,974.76 and 123,751.48 is: 185,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,985.76 : 398,974.76 = 123,751.48 : x
  2. Step 2: Convert to fraction form
    265,985.76/398,974.76 = 123,751.48/x
  3. Step 3: Cross multiply
    265,985.76x = 398,974.76 × 123,751.48
  4. Step 4: Simplify right side
    265,985.76x = 49,373,717,032.64
  5. Step 5: Solve for x
    x = 49,373,717,032.64/265,985.76
  6. Step 6: Final answer
    x = 185,625.41

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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.