Home / 282,432.09-389,765.27-155,107.69

Finding the Fourth Proportional to 282,432.09, 389,765.27 and 155,107.69

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Solution

The fourth proportional to 282,432.09, 389,765.27 and 155,107.69 is: 214,053.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,432.09 : 389,765.27 = 155,107.69 : x
  2. Step 2: Convert to fraction form
    282,432.09/389,765.27 = 155,107.69/x
  3. Step 3: Cross multiply
    282,432.09x = 389,765.27 × 155,107.69
  4. Step 4: Simplify right side
    282,432.09x = 60,455,587,947.56
  5. Step 5: Solve for x
    x = 60,455,587,947.56/282,432.09
  6. Step 6: Final answer
    x = 214,053.54

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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.