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Finding the Fourth Proportional to 440.03, 607.15 and 298.29

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Solution

The fourth proportional to 440.03, 607.15 and 298.29 is: 411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.03 : 607.15 = 298.29 : x
  2. Step 2: Convert to fraction form
    440.03/607.15 = 298.29/x
  3. Step 3: Cross multiply
    440.03x = 607.15 × 298.29
  4. Step 4: Simplify right side
    440.03x = 181,108.55
  5. Step 5: Solve for x
    x = 181,108.55/440.03
  6. Step 6: Final answer
    x = 411.58

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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.