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Finding the Fourth Proportional to 524.50, 723.77 and 288.41

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Solution

The fourth proportional to 524.50, 723.77 and 288.41 is: 397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.50 : 723.77 = 288.41 : x
  2. Step 2: Convert to fraction form
    524.50/723.77 = 288.41/x
  3. Step 3: Cross multiply
    524.50x = 723.77 × 288.41
  4. Step 4: Simplify right side
    524.50x = 208,741.06
  5. Step 5: Solve for x
    x = 208,741.06/524.50
  6. Step 6: Final answer
    x = 397.98

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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.