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Finding the Fourth Proportional to 524.67, 724.04 and 291.79

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Solution

The fourth proportional to 524.67, 724.04 and 291.79 is: 402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.67 : 724.04 = 291.79 : x
  2. Step 2: Convert to fraction form
    524.67/724.04 = 291.79/x
  3. Step 3: Cross multiply
    524.67x = 724.04 × 291.79
  4. Step 4: Simplify right side
    524.67x = 211,267.63
  5. Step 5: Solve for x
    x = 211,267.63/524.67
  6. Step 6: Final answer
    x = 402.67

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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.