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Finding the Fourth Proportional to 288,961.65, 398,676.70 and 174,275.37

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Solution

The fourth proportional to 288,961.65, 398,676.70 and 174,275.37 is: 240,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,961.65 : 398,676.70 = 174,275.37 : x
  2. Step 2: Convert to fraction form
    288,961.65/398,676.70 = 174,275.37/x
  3. Step 3: Cross multiply
    288,961.65x = 398,676.70 × 174,275.37
  4. Step 4: Simplify right side
    288,961.65x = 69,479,529,402.88
  5. Step 5: Solve for x
    x = 69,479,529,402.88/288,961.65
  6. Step 6: Final answer
    x = 240,445.50

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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.