Home / 291,967.38-402,913.89-157,831.38

Finding the Fourth Proportional to 291,967.38, 402,913.89 and 157,831.38

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Solution

The fourth proportional to 291,967.38, 402,913.89 and 157,831.38 is: 217,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,967.38 : 402,913.89 = 157,831.38 : x
  2. Step 2: Convert to fraction form
    291,967.38/402,913.89 = 157,831.38/x
  3. Step 3: Cross multiply
    291,967.38x = 402,913.89 × 157,831.38
  4. Step 4: Simplify right side
    291,967.38x = 63,592,455,279.87
  5. Step 5: Solve for x
    x = 63,592,455,279.87/291,967.38
  6. Step 6: Final answer
    x = 217,806.71

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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.