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Finding the Fourth Proportional to 294.82, 436.69 and 291.58

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Solution

The fourth proportional to 294.82, 436.69 and 291.58 is: 431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.82 : 436.69 = 291.58 : x
  2. Step 2: Convert to fraction form
    294.82/436.69 = 291.58/x
  3. Step 3: Cross multiply
    294.82x = 436.69 × 291.58
  4. Step 4: Simplify right side
    294.82x = 127,330.07
  5. Step 5: Solve for x
    x = 127,330.07/294.82
  6. Step 6: Final answer
    x = 431.89

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.