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Finding the Fourth Proportional to 535,565.80, 803,348.70 and 219,860.20

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Solution

The fourth proportional to 535,565.80, 803,348.70 and 219,860.20 is: 329,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,565.80 : 803,348.70 = 219,860.20 : x
  2. Step 2: Convert to fraction form
    535,565.80/803,348.70 = 219,860.20/x
  3. Step 3: Cross multiply
    535,565.80x = 803,348.70 × 219,860.20
  4. Step 4: Simplify right side
    535,565.80x = 176,624,405,851.74
  5. Step 5: Solve for x
    x = 176,624,405,851.74/535,565.80
  6. Step 6: Final answer
    x = 329,790.30

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Similar ratio
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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.