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Finding the Fourth Proportional to 652.08, 899.79 and 372.30

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Solution

The fourth proportional to 652.08, 899.79 and 372.30 is: 513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.08 : 899.79 = 372.30 : x
  2. Step 2: Convert to fraction form
    652.08/899.79 = 372.30/x
  3. Step 3: Cross multiply
    652.08x = 899.79 × 372.30
  4. Step 4: Simplify right side
    652.08x = 334,988.73
  5. Step 5: Solve for x
    x = 334,988.73/652.08
  6. Step 6: Final answer
    x = 513.72

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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.