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Finding the Fourth Proportional to 652.10, 899.82 and 357.36

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Solution

The fourth proportional to 652.10, 899.82 and 357.36 is: 493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.10 : 899.82 = 357.36 : x
  2. Step 2: Convert to fraction form
    652.10/899.82 = 357.36/x
  3. Step 3: Cross multiply
    652.10x = 899.82 × 357.36
  4. Step 4: Simplify right side
    652.10x = 321,559.68
  5. Step 5: Solve for x
    x = 321,559.68/652.10
  6. Step 6: Final answer
    x = 493.12

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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.