Home / 282,330.60-389,616.90-155,014.36

Finding the Fourth Proportional to 282,330.60, 389,616.90 and 155,014.36

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Solution

The fourth proportional to 282,330.60, 389,616.90 and 155,014.36 is: 213,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,330.60 : 389,616.90 = 155,014.36 : x
  2. Step 2: Convert to fraction form
    282,330.60/389,616.90 = 155,014.36/x
  3. Step 3: Cross multiply
    282,330.60x = 389,616.90 × 155,014.36
  4. Step 4: Simplify right side
    282,330.60x = 60,396,214,398.68
  5. Step 5: Solve for x
    x = 60,396,214,398.68/282,330.60
  6. Step 6: Final answer
    x = 213,920.19

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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.