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Finding the Fourth Proportional to 607.12, 909.87 and 332.80

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Solution

The fourth proportional to 607.12, 909.87 and 332.80 is: 498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.12 : 909.87 = 332.80 : x
  2. Step 2: Convert to fraction form
    607.12/909.87 = 332.80/x
  3. Step 3: Cross multiply
    607.12x = 909.87 × 332.80
  4. Step 4: Simplify right side
    607.12x = 302,804.74
  5. Step 5: Solve for x
    x = 302,804.74/607.12
  6. Step 6: Final answer
    x = 498.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.