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Finding the Fourth Proportional to 325,066.96, 487,622.31 and 125,389

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Solution

The fourth proportional to 325,066.96, 487,622.31 and 125,389 is: 188,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,066.96 : 487,622.31 = 125,389 : x
  2. Step 2: Convert to fraction form
    325,066.96/487,622.31 = 125,389/x
  3. Step 3: Cross multiply
    325,066.96x = 487,622.31 × 125,389
  4. Step 4: Simplify right side
    325,066.96x = 61,142,473,828.59
  5. Step 5: Solve for x
    x = 61,142,473,828.59/325,066.96
  6. Step 6: Final answer
    x = 188,091.94

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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.