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Finding the Fourth Proportional to 296.36, 440.92 and 290.88

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Solution

The fourth proportional to 296.36, 440.92 and 290.88 is: 432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.36 : 440.92 = 290.88 : x
  2. Step 2: Convert to fraction form
    296.36/440.92 = 290.88/x
  3. Step 3: Cross multiply
    296.36x = 440.92 × 290.88
  4. Step 4: Simplify right side
    296.36x = 128,254.81
  5. Step 5: Solve for x
    x = 128,254.81/296.36
  6. Step 6: Final answer
    x = 432.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.