Home / 218,945.24-328,519.94-215,407.16

Finding the Fourth Proportional to 218,945.24, 328,519.94 and 215,407.16

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Solution

The fourth proportional to 218,945.24, 328,519.94 and 215,407.16 is: 323,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,945.24 : 328,519.94 = 215,407.16 : x
  2. Step 2: Convert to fraction form
    218,945.24/328,519.94 = 215,407.16/x
  3. Step 3: Cross multiply
    218,945.24x = 328,519.94 × 215,407.16
  4. Step 4: Simplify right side
    218,945.24x = 70,765,547,278.77
  5. Step 5: Solve for x
    x = 70,765,547,278.77/218,945.24
  6. Step 6: Final answer
    x = 323,211.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.