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Finding the Fourth Proportional to 776.12, 1,164.53 and 365.23

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Solution

The fourth proportional to 776.12, 1,164.53 and 365.23 is: 548.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.12 : 1,164.53 = 365.23 : x
  2. Step 2: Convert to fraction form
    776.12/1,164.53 = 365.23/x
  3. Step 3: Cross multiply
    776.12x = 1,164.53 × 365.23
  4. Step 4: Simplify right side
    776.12x = 425,316.55
  5. Step 5: Solve for x
    x = 425,316.55/776.12
  6. Step 6: Final answer
    x = 548.00

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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.