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Finding the Fourth Proportional to 443.10, 661.57 and 373.24

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Solution

The fourth proportional to 443.10, 661.57 and 373.24 is: 557.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.10 : 661.57 = 373.24 : x
  2. Step 2: Convert to fraction form
    443.10/661.57 = 373.24/x
  3. Step 3: Cross multiply
    443.10x = 661.57 × 373.24
  4. Step 4: Simplify right side
    443.10x = 246,921.08
  5. Step 5: Solve for x
    x = 246,921.08/443.10
  6. Step 6: Final answer
    x = 557.26

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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.