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Finding the Fourth Proportional to 535,669.76, 803,765.76 and 220,221.44

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Solution

The fourth proportional to 535,669.76, 803,765.76 and 220,221.44 is: 330,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,669.76 : 803,765.76 = 220,221.44 : x
  2. Step 2: Convert to fraction form
    535,669.76/803,765.76 = 220,221.44/x
  3. Step 3: Cross multiply
    535,669.76x = 803,765.76 × 220,221.44
  4. Step 4: Simplify right side
    535,669.76x = 177,006,453,089.89
  5. Step 5: Solve for x
    x = 177,006,453,089.89/535,669.76
  6. Step 6: Final answer
    x = 330,439.51

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1.5x scale

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.