Home / 282,546.90-389,921.94-155,225.70

Finding the Fourth Proportional to 282,546.90, 389,921.94 and 155,225.70

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Solution

The fourth proportional to 282,546.90, 389,921.94 and 155,225.70 is: 214,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,546.90 : 389,921.94 = 155,225.70 : x
  2. Step 2: Convert to fraction form
    282,546.90/389,921.94 = 155,225.70/x
  3. Step 3: Cross multiply
    282,546.90x = 389,921.94 × 155,225.70
  4. Step 4: Simplify right side
    282,546.90x = 60,525,906,081.86
  5. Step 5: Solve for x
    x = 60,525,906,081.86/282,546.90
  6. Step 6: Final answer
    x = 214,215.43

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1.5x scale

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.