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Finding the Fourth Proportional to 242.63, 335.10 and 188.03

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Solution

The fourth proportional to 242.63, 335.10 and 188.03 is: 259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.63 : 335.10 = 188.03 : x
  2. Step 2: Convert to fraction form
    242.63/335.10 = 188.03/x
  3. Step 3: Cross multiply
    242.63x = 335.10 × 188.03
  4. Step 4: Simplify right side
    242.63x = 63,006.71
  5. Step 5: Solve for x
    x = 63,006.71/242.63
  6. Step 6: Final answer
    x = 259.68

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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.