Home / 325,005.39-487,623.56-145,074.51

Finding the Fourth Proportional to 325,005.39, 487,623.56 and 145,074.51

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Solution

The fourth proportional to 325,005.39, 487,623.56 and 145,074.51 is: 217,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,005.39 : 487,623.56 = 145,074.51 : x
  2. Step 2: Convert to fraction form
    325,005.39/487,623.56 = 145,074.51/x
  3. Step 3: Cross multiply
    325,005.39x = 487,623.56 × 145,074.51
  4. Step 4: Simplify right side
    325,005.39x = 70,741,748,306.08
  5. Step 5: Solve for x
    x = 70,741,748,306.08/325,005.39
  6. Step 6: Final answer
    x = 217,663.31

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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.