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Finding the Fourth Proportional to 501,311.10, 751,995.45 and 146,379.90

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Solution

The fourth proportional to 501,311.10, 751,995.45 and 146,379.90 is: 219,578.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,311.10 : 751,995.45 = 146,379.90 : x
  2. Step 2: Convert to fraction form
    501,311.10/751,995.45 = 146,379.90/x
  3. Step 3: Cross multiply
    501,311.10x = 751,995.45 × 146,379.90
  4. Step 4: Simplify right side
    501,311.10x = 110,077,018,771.46
  5. Step 5: Solve for x
    x = 110,077,018,771.46/501,311.10
  6. Step 6: Final answer
    x = 219,578.26

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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.