Home / 387,815.56-581,408.97-174,427.23

Finding the Fourth Proportional to 387,815.56, 581,408.97 and 174,427.23

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Solution

The fourth proportional to 387,815.56, 581,408.97 and 174,427.23 is: 261,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,815.56 : 581,408.97 = 174,427.23 : x
  2. Step 2: Convert to fraction form
    387,815.56/581,408.97 = 174,427.23/x
  3. Step 3: Cross multiply
    387,815.56x = 581,408.97 × 174,427.23
  4. Step 4: Simplify right side
    387,815.56x = 101,413,556,134.25
  5. Step 5: Solve for x
    x = 101,413,556,134.25/387,815.56
  6. Step 6: Final answer
    x = 261,499.45

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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.