Home / 356,979.12-492,964.56-229,878.24

Finding the Fourth Proportional to 356,979.12, 492,964.56 and 229,878.24

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Solution

The fourth proportional to 356,979.12, 492,964.56 and 229,878.24 is: 317,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,979.12 : 492,964.56 = 229,878.24 : x
  2. Step 2: Convert to fraction form
    356,979.12/492,964.56 = 229,878.24/x
  3. Step 3: Cross multiply
    356,979.12x = 492,964.56 × 229,878.24
  4. Step 4: Simplify right side
    356,979.12x = 113,321,825,435.17
  5. Step 5: Solve for x
    x = 113,321,825,435.17/356,979.12
  6. Step 6: Final answer
    x = 317,446.65

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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.