Home / 218,619.12-301,833.68-178,428.72

Finding the Fourth Proportional to 218,619.12, 301,833.68 and 178,428.72

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Solution

The fourth proportional to 218,619.12, 301,833.68 and 178,428.72 is: 246,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,619.12 : 301,833.68 = 178,428.72 : x
  2. Step 2: Convert to fraction form
    218,619.12/301,833.68 = 178,428.72/x
  3. Step 3: Cross multiply
    218,619.12x = 301,833.68 × 178,428.72
  4. Step 4: Simplify right side
    218,619.12x = 53,855,796,283.15
  5. Step 5: Solve for x
    x = 53,855,796,283.15/218,619.12
  6. Step 6: Final answer
    x = 246,345.32

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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.