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Finding the Fourth Proportional to 288,193.92, 397,699.32 and 160,866.76

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Solution

The fourth proportional to 288,193.92, 397,699.32 and 160,866.76 is: 221,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,193.92 : 397,699.32 = 160,866.76 : x
  2. Step 2: Convert to fraction form
    288,193.92/397,699.32 = 160,866.76/x
  3. Step 3: Cross multiply
    288,193.92x = 397,699.32 × 160,866.76
  4. Step 4: Simplify right side
    288,193.92x = 63,976,601,062.60
  5. Step 5: Solve for x
    x = 63,976,601,062.60/288,193.92
  6. Step 6: Final answer
    x = 221,991.50

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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.