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Finding the Fourth Proportional to 288,157.77, 397,621.04 and 160,838.73

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Solution

The fourth proportional to 288,157.77, 397,621.04 and 160,838.73 is: 221,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,157.77 : 397,621.04 = 160,838.73 : x
  2. Step 2: Convert to fraction form
    288,157.77/397,621.04 = 160,838.73/x
  3. Step 3: Cross multiply
    288,157.77x = 397,621.04 × 160,838.73
  4. Step 4: Simplify right side
    288,157.77x = 63,952,862,290.69
  5. Step 5: Solve for x
    x = 63,952,862,290.69/288,157.77
  6. Step 6: Final answer
    x = 221,936.97

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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.