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Finding the Fourth Proportional to 524.40, 723.75 and 303.36

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Solution

The fourth proportional to 524.40, 723.75 and 303.36 is: 418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.40 : 723.75 = 303.36 : x
  2. Step 2: Convert to fraction form
    524.40/723.75 = 303.36/x
  3. Step 3: Cross multiply
    524.40x = 723.75 × 303.36
  4. Step 4: Simplify right side
    524.40x = 219,556.80
  5. Step 5: Solve for x
    x = 219,556.80/524.40
  6. Step 6: Final answer
    x = 418.68

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1.5x scale

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.