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Finding the Fourth Proportional to 412.60, 615.36 and 373.72

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Solution

The fourth proportional to 412.60, 615.36 and 373.72 is: 557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.60 : 615.36 = 373.72 : x
  2. Step 2: Convert to fraction form
    412.60/615.36 = 373.72/x
  3. Step 3: Cross multiply
    412.60x = 615.36 × 373.72
  4. Step 4: Simplify right side
    412.60x = 229,972.34
  5. Step 5: Solve for x
    x = 229,972.34/412.60
  6. Step 6: Final answer
    x = 557.37

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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.