Home / 282,332.10-389,618.96-155,015.90

Finding the Fourth Proportional to 282,332.10, 389,618.96 and 155,015.90

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Solution

The fourth proportional to 282,332.10, 389,618.96 and 155,015.90 is: 213,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,332.10 : 389,618.96 = 155,015.90 : x
  2. Step 2: Convert to fraction form
    282,332.10/389,618.96 = 155,015.90/x
  3. Step 3: Cross multiply
    282,332.10x = 389,618.96 × 155,015.90
  4. Step 4: Simplify right side
    282,332.10x = 60,397,133,741.46
  5. Step 5: Solve for x
    x = 60,397,133,741.46/282,332.10
  6. Step 6: Final answer
    x = 213,922.31

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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.