Home / 282,723.12-390,214.66-167,979.70

Finding the Fourth Proportional to 282,723.12, 390,214.66 and 167,979.70

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Solution

The fourth proportional to 282,723.12, 390,214.66 and 167,979.70 is: 231,845.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,723.12 : 390,214.66 = 167,979.70 : x
  2. Step 2: Convert to fraction form
    282,723.12/390,214.66 = 167,979.70/x
  3. Step 3: Cross multiply
    282,723.12x = 390,214.66 × 167,979.70
  4. Step 4: Simplify right side
    282,723.12x = 65,548,141,522.40
  5. Step 5: Solve for x
    x = 65,548,141,522.40/282,723.12
  6. Step 6: Final answer
    x = 231,845.71

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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.