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Finding the Fourth Proportional to 208,846.65, 288,200.66 and 113,351.30

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Solution

The fourth proportional to 208,846.65, 288,200.66 and 113,351.30 is: 156,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,846.65 : 288,200.66 = 113,351.30 : x
  2. Step 2: Convert to fraction form
    208,846.65/288,200.66 = 113,351.30/x
  3. Step 3: Cross multiply
    208,846.65x = 288,200.66 × 113,351.30
  4. Step 4: Simplify right side
    208,846.65x = 32,667,918,030.85
  5. Step 5: Solve for x
    x = 32,667,918,030.85/208,846.65
  6. Step 6: Final answer
    x = 156,420.60

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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.