Home / 254,158.20-380,989.35-121,002.66

Finding the Fourth Proportional to 254,158.20, 380,989.35 and 121,002.66

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Solution

The fourth proportional to 254,158.20, 380,989.35 and 121,002.66 is: 181,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,158.20 : 380,989.35 = 121,002.66 : x
  2. Step 2: Convert to fraction form
    254,158.20/380,989.35 = 121,002.66/x
  3. Step 3: Cross multiply
    254,158.20x = 380,989.35 × 121,002.66
  4. Step 4: Simplify right side
    254,158.20x = 46,100,724,781.67
  5. Step 5: Solve for x
    x = 46,100,724,781.67/254,158.20
  6. Step 6: Final answer
    x = 181,385.94

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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.