Home / 282,325.26-389,609.51-155,009.02

Finding the Fourth Proportional to 282,325.26, 389,609.51 and 155,009.02

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Solution

The fourth proportional to 282,325.26, 389,609.51 and 155,009.02 is: 213,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,325.26 : 389,609.51 = 155,009.02 : x
  2. Step 2: Convert to fraction form
    282,325.26/389,609.51 = 155,009.02/x
  3. Step 3: Cross multiply
    282,325.26x = 389,609.51 × 155,009.02
  4. Step 4: Simplify right side
    282,325.26x = 60,392,988,327.78
  5. Step 5: Solve for x
    x = 60,392,988,327.78/282,325.26
  6. Step 6: Final answer
    x = 213,912.81

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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.