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Finding the Fourth Proportional to 434.89, 652.06 and 242.65

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Solution

The fourth proportional to 434.89, 652.06 and 242.65 is: 363.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.89 : 652.06 = 242.65 : x
  2. Step 2: Convert to fraction form
    434.89/652.06 = 242.65/x
  3. Step 3: Cross multiply
    434.89x = 652.06 × 242.65
  4. Step 4: Simplify right side
    434.89x = 158,222.36
  5. Step 5: Solve for x
    x = 158,222.36/434.89
  6. Step 6: Final answer
    x = 363.82

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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.