Home / 438,550.54-657,881.17-154,174.25

Finding the Fourth Proportional to 438,550.54, 657,881.17 and 154,174.25

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Solution

The fourth proportional to 438,550.54, 657,881.17 and 154,174.25 is: 231,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,550.54 : 657,881.17 = 154,174.25 : x
  2. Step 2: Convert to fraction form
    438,550.54/657,881.17 = 154,174.25/x
  3. Step 3: Cross multiply
    438,550.54x = 657,881.17 × 154,174.25
  4. Step 4: Simplify right side
    438,550.54x = 101,428,335,973.87
  5. Step 5: Solve for x
    x = 101,428,335,973.87/438,550.54
  6. Step 6: Final answer
    x = 231,280.84

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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.