Home / 291,756.30-402,233.76-218,849.28

Finding the Fourth Proportional to 291,756.30, 402,233.76 and 218,849.28

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Solution

The fourth proportional to 291,756.30, 402,233.76 and 218,849.28 is: 301,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,756.30 : 402,233.76 = 218,849.28 : x
  2. Step 2: Convert to fraction form
    291,756.30/402,233.76 = 218,849.28/x
  3. Step 3: Cross multiply
    291,756.30x = 402,233.76 × 218,849.28
  4. Step 4: Simplify right side
    291,756.30x = 88,028,568,767.69
  5. Step 5: Solve for x
    x = 88,028,568,767.69/291,756.30
  6. Step 6: Final answer
    x = 301,719.51

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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.