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Finding the Fourth Proportional to 340.08, 510.28 and 155.02

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Solution

The fourth proportional to 340.08, 510.28 and 155.02 is: 232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.08 : 510.28 = 155.02 : x
  2. Step 2: Convert to fraction form
    340.08/510.28 = 155.02/x
  3. Step 3: Cross multiply
    340.08x = 510.28 × 155.02
  4. Step 4: Simplify right side
    340.08x = 79,103.61
  5. Step 5: Solve for x
    x = 79,103.61/340.08
  6. Step 6: Final answer
    x = 232.60

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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.