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Finding the Fourth Proportional to 340.98, 510.94 and 225.30

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Solution

The fourth proportional to 340.98, 510.94 and 225.30 is: 337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.98 : 510.94 = 225.30 : x
  2. Step 2: Convert to fraction form
    340.98/510.94 = 225.30/x
  3. Step 3: Cross multiply
    340.98x = 510.94 × 225.30
  4. Step 4: Simplify right side
    340.98x = 115,114.78
  5. Step 5: Solve for x
    x = 115,114.78/340.98
  6. Step 6: Final answer
    x = 337.60

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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.