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Finding the Fourth Proportional to 457.04, 684.60 and 371.60

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Solution

The fourth proportional to 457.04, 684.60 and 371.60 is: 556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.04 : 684.60 = 371.60 : x
  2. Step 2: Convert to fraction form
    457.04/684.60 = 371.60/x
  3. Step 3: Cross multiply
    457.04x = 684.60 × 371.60
  4. Step 4: Simplify right side
    457.04x = 254,397.36
  5. Step 5: Solve for x
    x = 254,397.36/457.04
  6. Step 6: Final answer
    x = 556.62

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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.