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Finding the Fourth Proportional to 501,138.84, 751,606.26 and 185,520.72

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Solution

The fourth proportional to 501,138.84, 751,606.26 and 185,520.72 is: 278,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,138.84 : 751,606.26 = 185,520.72 : x
  2. Step 2: Convert to fraction form
    501,138.84/751,606.26 = 185,520.72/x
  3. Step 3: Cross multiply
    501,138.84x = 751,606.26 × 185,520.72
  4. Step 4: Simplify right side
    501,138.84x = 139,438,534,511.71
  5. Step 5: Solve for x
    x = 139,438,534,511.71/501,138.84
  6. Step 6: Final answer
    x = 278,243.32

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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.