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Finding the Fourth Proportional to 444.48, 612.72 and 296.79

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Solution

The fourth proportional to 444.48, 612.72 and 296.79 is: 409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.48 : 612.72 = 296.79 : x
  2. Step 2: Convert to fraction form
    444.48/612.72 = 296.79/x
  3. Step 3: Cross multiply
    444.48x = 612.72 × 296.79
  4. Step 4: Simplify right side
    444.48x = 181,849.17
  5. Step 5: Solve for x
    x = 181,849.17/444.48
  6. Step 6: Final answer
    x = 409.13

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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.