Home / 265,539.18-398,308.40-123,306.69

Finding the Fourth Proportional to 265,539.18, 398,308.40 and 123,306.69

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Solution

The fourth proportional to 265,539.18, 398,308.40 and 123,306.69 is: 184,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,539.18 : 398,308.40 = 123,306.69 : x
  2. Step 2: Convert to fraction form
    265,539.18/398,308.40 = 123,306.69/x
  3. Step 3: Cross multiply
    265,539.18x = 398,308.40 × 123,306.69
  4. Step 4: Simplify right side
    265,539.18x = 49,114,089,786.66
  5. Step 5: Solve for x
    x = 49,114,089,786.66/265,539.18
  6. Step 6: Final answer
    x = 184,959.86

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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.