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Finding the Fourth Proportional to 497.60, 686.74 and 373.05

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Solution

The fourth proportional to 497.60, 686.74 and 373.05 is: 514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.60 : 686.74 = 373.05 : x
  2. Step 2: Convert to fraction form
    497.60/686.74 = 373.05/x
  3. Step 3: Cross multiply
    497.60x = 686.74 × 373.05
  4. Step 4: Simplify right side
    497.60x = 256,188.36
  5. Step 5: Solve for x
    x = 256,188.36/497.60
  6. Step 6: Final answer
    x = 514.85

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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.