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Finding the Fourth Proportional to 476,978.88, 715,517.46 and 140,018.22

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Solution

The fourth proportional to 476,978.88, 715,517.46 and 140,018.22 is: 210,041.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,978.88 : 715,517.46 = 140,018.22 : x
  2. Step 2: Convert to fraction form
    476,978.88/715,517.46 = 140,018.22/x
  3. Step 3: Cross multiply
    476,978.88x = 715,517.46 × 140,018.22
  4. Step 4: Simplify right side
    476,978.88x = 100,185,481,128.12
  5. Step 5: Solve for x
    x = 100,185,481,128.12/476,978.88
  6. Step 6: Final answer
    x = 210,041.76

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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.