Home / 291,269.76-402,076.64-195,831.80

Finding the Fourth Proportional to 291,269.76, 402,076.64 and 195,831.80

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Solution

The fourth proportional to 291,269.76, 402,076.64 and 195,831.80 is: 270,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,269.76 : 402,076.64 = 195,831.80 : x
  2. Step 2: Convert to fraction form
    291,269.76/402,076.64 = 195,831.80/x
  3. Step 3: Cross multiply
    291,269.76x = 402,076.64 × 195,831.80
  4. Step 4: Simplify right side
    291,269.76x = 78,739,392,149.15
  5. Step 5: Solve for x
    x = 78,739,392,149.15/291,269.76
  6. Step 6: Final answer
    x = 270,331.50

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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.