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Finding the Fourth Proportional to 370.18, 510.42 and 300.04

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Solution

The fourth proportional to 370.18, 510.42 and 300.04 is: 413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.18 : 510.42 = 300.04 : x
  2. Step 2: Convert to fraction form
    370.18/510.42 = 300.04/x
  3. Step 3: Cross multiply
    370.18x = 510.42 × 300.04
  4. Step 4: Simplify right side
    370.18x = 153,146.42
  5. Step 5: Solve for x
    x = 153,146.42/370.18
  6. Step 6: Final answer
    x = 413.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.