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Finding the Fourth Proportional to 340.29, 510.08 and 216.98

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Solution

The fourth proportional to 340.29, 510.08 and 216.98 is: 325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.29 : 510.08 = 216.98 : x
  2. Step 2: Convert to fraction form
    340.29/510.08 = 216.98/x
  3. Step 3: Cross multiply
    340.29x = 510.08 × 216.98
  4. Step 4: Simplify right side
    340.29x = 110,676.07
  5. Step 5: Solve for x
    x = 110,676.07/340.29
  6. Step 6: Final answer
    x = 325.24

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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.