Home / 402,995.06-556,212.68-231,028.50

Finding the Fourth Proportional to 402,995.06, 556,212.68 and 231,028.50

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Solution

The fourth proportional to 402,995.06, 556,212.68 and 231,028.50 is: 318,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,995.06 : 556,212.68 = 231,028.50 : x
  2. Step 2: Convert to fraction form
    402,995.06/556,212.68 = 231,028.50/x
  3. Step 3: Cross multiply
    402,995.06x = 556,212.68 × 231,028.50
  4. Step 4: Simplify right side
    402,995.06x = 128,500,981,141.38
  5. Step 5: Solve for x
    x = 128,500,981,141.38/402,995.06
  6. Step 6: Final answer
    x = 318,864.90

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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.