Home / 278,831.50-418,012.08-120,941.02

Finding the Fourth Proportional to 278,831.50, 418,012.08 and 120,941.02

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Solution

The fourth proportional to 278,831.50, 418,012.08 and 120,941.02 is: 181,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,831.50 : 418,012.08 = 120,941.02 : x
  2. Step 2: Convert to fraction form
    278,831.50/418,012.08 = 120,941.02/x
  3. Step 3: Cross multiply
    278,831.50x = 418,012.08 × 120,941.02
  4. Step 4: Simplify right side
    278,831.50x = 50,554,807,327.52
  5. Step 5: Solve for x
    x = 50,554,807,327.52/278,831.50
  6. Step 6: Final answer
    x = 181,309.53

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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.