Home / 282,436.06-389,761.28-155,111.64

Finding the Fourth Proportional to 282,436.06, 389,761.28 and 155,111.64

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Solution

The fourth proportional to 282,436.06, 389,761.28 and 155,111.64 is: 214,053.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,436.06 : 389,761.28 = 155,111.64 : x
  2. Step 2: Convert to fraction form
    282,436.06/389,761.28 = 155,111.64/x
  3. Step 3: Cross multiply
    282,436.06x = 389,761.28 × 155,111.64
  4. Step 4: Simplify right side
    282,436.06x = 60,456,508,624.93
  5. Step 5: Solve for x
    x = 60,456,508,624.93/282,436.06
  6. Step 6: Final answer
    x = 214,053.79

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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.