Home / 280,343.27-386,831.86-157,817.96

Finding the Fourth Proportional to 280,343.27, 386,831.86 and 157,817.96

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Solution

The fourth proportional to 280,343.27, 386,831.86 and 157,817.96 is: 217,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,343.27 : 386,831.86 = 157,817.96 : x
  2. Step 2: Convert to fraction form
    280,343.27/386,831.86 = 157,817.96/x
  3. Step 3: Cross multiply
    280,343.27x = 386,831.86 × 157,817.96
  4. Step 4: Simplify right side
    280,343.27x = 61,049,015,008.21
  5. Step 5: Solve for x
    x = 61,049,015,008.21/280,343.27
  6. Step 6: Final answer
    x = 217,765.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.