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Finding the Fourth Proportional to 416.70, 575.10 and 369.72

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Solution

The fourth proportional to 416.70, 575.10 and 369.72 is: 510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.70 : 575.10 = 369.72 : x
  2. Step 2: Convert to fraction form
    416.70/575.10 = 369.72/x
  3. Step 3: Cross multiply
    416.70x = 575.10 × 369.72
  4. Step 4: Simplify right side
    416.70x = 212,625.97
  5. Step 5: Solve for x
    x = 212,625.97/416.70
  6. Step 6: Final answer
    x = 510.26

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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.