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Finding the Fourth Proportional to 316.01, 435.53 and 242.18

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Solution

The fourth proportional to 316.01, 435.53 and 242.18 is: 333.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.01 : 435.53 = 242.18 : x
  2. Step 2: Convert to fraction form
    316.01/435.53 = 242.18/x
  3. Step 3: Cross multiply
    316.01x = 435.53 × 242.18
  4. Step 4: Simplify right side
    316.01x = 105,473.27
  5. Step 5: Solve for x
    x = 105,473.27/316.01
  6. Step 6: Final answer
    x = 333.77

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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.