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Finding the Fourth Proportional to 288,141.80, 397,632.10 and 159,081.32

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Solution

The fourth proportional to 288,141.80, 397,632.10 and 159,081.32 is: 219,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,141.80 : 397,632.10 = 159,081.32 : x
  2. Step 2: Convert to fraction form
    288,141.80/397,632.10 = 159,081.32/x
  3. Step 3: Cross multiply
    288,141.80x = 397,632.10 × 159,081.32
  4. Step 4: Simplify right side
    288,141.80x = 63,255,839,342.37
  5. Step 5: Solve for x
    x = 63,255,839,342.37/288,141.80
  6. Step 6: Final answer
    x = 219,530.24

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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.