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Finding the Fourth Proportional to 524.32, 723.59 and 291.45

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Solution

The fourth proportional to 524.32, 723.59 and 291.45 is: 402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.32 : 723.59 = 291.45 : x
  2. Step 2: Convert to fraction form
    524.32/723.59 = 291.45/x
  3. Step 3: Cross multiply
    524.32x = 723.59 × 291.45
  4. Step 4: Simplify right side
    524.32x = 210,890.31
  5. Step 5: Solve for x
    x = 210,890.31/524.32
  6. Step 6: Final answer
    x = 402.22

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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.