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Finding the Fourth Proportional to 295,485.66, 443,163.60 and 85,077.90

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Solution

The fourth proportional to 295,485.66, 443,163.60 and 85,077.90 is: 127,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,485.66 : 443,163.60 = 85,077.90 : x
  2. Step 2: Convert to fraction form
    295,485.66/443,163.60 = 85,077.90/x
  3. Step 3: Cross multiply
    295,485.66x = 443,163.60 × 85,077.90
  4. Step 4: Simplify right side
    295,485.66x = 37,703,428,444.44
  5. Step 5: Solve for x
    x = 37,703,428,444.44/295,485.66
  6. Step 6: Final answer
    x = 127,598.17

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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.