Home / 219,401.28-302,767.68-129,977.28

Finding the Fourth Proportional to 219,401.28, 302,767.68 and 129,977.28

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Solution

The fourth proportional to 219,401.28, 302,767.68 and 129,977.28 is: 179,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,401.28 : 302,767.68 = 129,977.28 : x
  2. Step 2: Convert to fraction form
    219,401.28/302,767.68 = 129,977.28/x
  3. Step 3: Cross multiply
    219,401.28x = 302,767.68 × 129,977.28
  4. Step 4: Simplify right side
    219,401.28x = 39,352,919,518.31
  5. Step 5: Solve for x
    x = 39,352,919,518.31/219,401.28
  6. Step 6: Final answer
    x = 179,365.04

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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.