Home / 282,331.10-389,617.58-155,014.90

Finding the Fourth Proportional to 282,331.10, 389,617.58 and 155,014.90

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Solution

The fourth proportional to 282,331.10, 389,617.58 and 155,014.90 is: 213,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,331.10 : 389,617.58 = 155,014.90 : x
  2. Step 2: Convert to fraction form
    282,331.10/389,617.58 = 155,014.90/x
  3. Step 3: Cross multiply
    282,331.10x = 389,617.58 × 155,014.90
  4. Step 4: Simplify right side
    282,331.10x = 60,396,530,201.94
  5. Step 5: Solve for x
    x = 60,396,530,201.94/282,331.10
  6. Step 6: Final answer
    x = 213,920.93

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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.