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Finding the Fourth Proportional to 607.13, 909.07 and 331.93

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Solution

The fourth proportional to 607.13, 909.07 and 331.93 is: 497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.13 : 909.07 = 331.93 : x
  2. Step 2: Convert to fraction form
    607.13/909.07 = 331.93/x
  3. Step 3: Cross multiply
    607.13x = 909.07 × 331.93
  4. Step 4: Simplify right side
    607.13x = 301,747.61
  5. Step 5: Solve for x
    x = 301,747.61/607.13
  6. Step 6: Final answer
    x = 497.01

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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.