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Finding the Fourth Proportional to 340.52, 510.30 and 186.26

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Solution

The fourth proportional to 340.52, 510.30 and 186.26 is: 279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.52 : 510.30 = 186.26 : x
  2. Step 2: Convert to fraction form
    340.52/510.30 = 186.26/x
  3. Step 3: Cross multiply
    340.52x = 510.30 × 186.26
  4. Step 4: Simplify right side
    340.52x = 95,045.93
  5. Step 5: Solve for x
    x = 95,045.93/340.52
  6. Step 6: Final answer
    x = 279.12

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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.