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Finding the Fourth Proportional to 288,675.89, 398,356.56 and 159,606.84

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Solution

The fourth proportional to 288,675.89, 398,356.56 and 159,606.84 is: 220,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,675.89 : 398,356.56 = 159,606.84 : x
  2. Step 2: Convert to fraction form
    288,675.89/398,356.56 = 159,606.84/x
  3. Step 3: Cross multiply
    288,675.89x = 398,356.56 × 159,606.84
  4. Step 4: Simplify right side
    288,675.89x = 63,580,431,734.87
  5. Step 5: Solve for x
    x = 63,580,431,734.87/288,675.89
  6. Step 6: Final answer
    x = 220,248.50

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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.