Home / 282,928.78-390,524.52-168,288.13

Finding the Fourth Proportional to 282,928.78, 390,524.52 and 168,288.13

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Solution

The fourth proportional to 282,928.78, 390,524.52 and 168,288.13 is: 232,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,928.78 : 390,524.52 = 168,288.13 : x
  2. Step 2: Convert to fraction form
    282,928.78/390,524.52 = 168,288.13/x
  3. Step 3: Cross multiply
    282,928.78x = 390,524.52 × 168,288.13
  4. Step 4: Simplify right side
    282,928.78x = 65,720,641,189.95
  5. Step 5: Solve for x
    x = 65,720,641,189.95/282,928.78
  6. Step 6: Final answer
    x = 232,286.87

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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.