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Finding the Fourth Proportional to 237,403.78, 356,159 and 79,628.20

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Solution

The fourth proportional to 237,403.78, 356,159 and 79,628.20 is: 119,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,403.78 : 356,159 = 79,628.20 : x
  2. Step 2: Convert to fraction form
    237,403.78/356,159 = 79,628.20/x
  3. Step 3: Cross multiply
    237,403.78x = 356,159 × 79,628.20
  4. Step 4: Simplify right side
    237,403.78x = 28,360,300,083.80
  5. Step 5: Solve for x
    x = 28,360,300,083.80/237,403.78
  6. Step 6: Final answer
    x = 119,460.19

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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.