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Finding the Fourth Proportional to 373.69, 515.71 and 242.93

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Solution

The fourth proportional to 373.69, 515.71 and 242.93 is: 335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.69 : 515.71 = 242.93 : x
  2. Step 2: Convert to fraction form
    373.69/515.71 = 242.93/x
  3. Step 3: Cross multiply
    373.69x = 515.71 × 242.93
  4. Step 4: Simplify right side
    373.69x = 125,278.24
  5. Step 5: Solve for x
    x = 125,278.24/373.69
  6. Step 6: Final answer
    x = 335.25

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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.