Home / 283,831.62-391,687.02-156,507.72

Finding the Fourth Proportional to 283,831.62, 391,687.02 and 156,507.72

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Solution

The fourth proportional to 283,831.62, 391,687.02 and 156,507.72 is: 215,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,831.62 : 391,687.02 = 156,507.72 : x
  2. Step 2: Convert to fraction form
    283,831.62/391,687.02 = 156,507.72/x
  3. Step 3: Cross multiply
    283,831.62x = 391,687.02 × 156,507.72
  4. Step 4: Simplify right side
    283,831.62x = 61,302,042,453.79
  5. Step 5: Solve for x
    x = 61,302,042,453.79/283,831.62
  6. Step 6: Final answer
    x = 215,980.31

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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.