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Finding the Fourth Proportional to 672.91, 1,009.83 and 240.06

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Solution

The fourth proportional to 672.91, 1,009.83 and 240.06 is: 360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.91 : 1,009.83 = 240.06 : x
  2. Step 2: Convert to fraction form
    672.91/1,009.83 = 240.06/x
  3. Step 3: Cross multiply
    672.91x = 1,009.83 × 240.06
  4. Step 4: Simplify right side
    672.91x = 242,424.48
  5. Step 5: Solve for x
    x = 242,424.48/672.91
  6. Step 6: Final answer
    x = 360.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.