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Finding the Fourth Proportional to 885.02, 1,327.53 and 307.89

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Solution

The fourth proportional to 885.02, 1,327.53 and 307.89 is: 461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.02 : 1,327.53 = 307.89 : x
  2. Step 2: Convert to fraction form
    885.02/1,327.53 = 307.89/x
  3. Step 3: Cross multiply
    885.02x = 1,327.53 × 307.89
  4. Step 4: Simplify right side
    885.02x = 408,733.21
  5. Step 5: Solve for x
    x = 408,733.21/885.02
  6. Step 6: Final answer
    x = 461.84

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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.