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Finding the Fourth Proportional to 340.04, 510.25 and 145.02

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Solution

The fourth proportional to 340.04, 510.25 and 145.02 is: 217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.04 : 510.25 = 145.02 : x
  2. Step 2: Convert to fraction form
    340.04/510.25 = 145.02/x
  3. Step 3: Cross multiply
    340.04x = 510.25 × 145.02
  4. Step 4: Simplify right side
    340.04x = 73,997.45
  5. Step 5: Solve for x
    x = 73,997.45/340.04
  6. Step 6: Final answer
    x = 217.61

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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.