Home / 235,965.70-353,948.55-220,219.30

Finding the Fourth Proportional to 235,965.70, 353,948.55 and 220,219.30

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Solution

The fourth proportional to 235,965.70, 353,948.55 and 220,219.30 is: 330,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,965.70 : 353,948.55 = 220,219.30 : x
  2. Step 2: Convert to fraction form
    235,965.70/353,948.55 = 220,219.30/x
  3. Step 3: Cross multiply
    235,965.70x = 353,948.55 × 220,219.30
  4. Step 4: Simplify right side
    235,965.70x = 77,946,301,917.02
  5. Step 5: Solve for x
    x = 77,946,301,917.02/235,965.70
  6. Step 6: Final answer
    x = 330,328.95

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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.