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Finding the Fourth Proportional to 208,849.03, 288,203.94 and 113,353.68

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Solution

The fourth proportional to 208,849.03, 288,203.94 and 113,353.68 is: 156,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,849.03 : 288,203.94 = 113,353.68 : x
  2. Step 2: Convert to fraction form
    208,849.03/288,203.94 = 113,353.68/x
  3. Step 3: Cross multiply
    208,849.03x = 288,203.94 × 113,353.68
  4. Step 4: Simplify right side
    208,849.03x = 32,668,977,189.50
  5. Step 5: Solve for x
    x = 32,668,977,189.50/208,849.03
  6. Step 6: Final answer
    x = 156,423.89

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1.5x scale

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.