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Finding the Fourth Proportional to 535,581.28, 803,338.92 and 220,030

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Solution

The fourth proportional to 535,581.28, 803,338.92 and 220,030 is: 330,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,581.28 : 803,338.92 = 220,030 : x
  2. Step 2: Convert to fraction form
    535,581.28/803,338.92 = 220,030/x
  3. Step 3: Cross multiply
    535,581.28x = 803,338.92 × 220,030
  4. Step 4: Simplify right side
    535,581.28x = 176,758,662,567.60
  5. Step 5: Solve for x
    x = 176,758,662,567.60/535,581.28
  6. Step 6: Final answer
    x = 330,031.44

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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.