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Finding the Fourth Proportional to 288,115.47, 397,600.83 and 159,051.65

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Solution

The fourth proportional to 288,115.47, 397,600.83 and 159,051.65 is: 219,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,115.47 : 397,600.83 = 159,051.65 : x
  2. Step 2: Convert to fraction form
    288,115.47/397,600.83 = 159,051.65/x
  3. Step 3: Cross multiply
    288,115.47x = 397,600.83 × 159,051.65
  4. Step 4: Simplify right side
    288,115.47x = 63,239,066,064.87
  5. Step 5: Solve for x
    x = 63,239,066,064.87/288,115.47
  6. Step 6: Final answer
    x = 219,492.09

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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.