Home / 282,319.47-389,601.52-155,003.26

Finding the Fourth Proportional to 282,319.47, 389,601.52 and 155,003.26

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Solution

The fourth proportional to 282,319.47, 389,601.52 and 155,003.26 is: 213,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,319.47 : 389,601.52 = 155,003.26 : x
  2. Step 2: Convert to fraction form
    282,319.47/389,601.52 = 155,003.26/x
  3. Step 3: Cross multiply
    282,319.47x = 389,601.52 × 155,003.26
  4. Step 4: Simplify right side
    282,319.47x = 60,389,505,700.96
  5. Step 5: Solve for x
    x = 60,389,505,700.96/282,319.47
  6. Step 6: Final answer
    x = 213,904.86

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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.