Home / 258,859.90-388,345.29-146,593.18

Finding the Fourth Proportional to 258,859.90, 388,345.29 and 146,593.18

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Solution

The fourth proportional to 258,859.90, 388,345.29 and 146,593.18 is: 219,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,859.90 : 388,345.29 = 146,593.18 : x
  2. Step 2: Convert to fraction form
    258,859.90/388,345.29 = 146,593.18/x
  3. Step 3: Cross multiply
    258,859.90x = 388,345.29 × 146,593.18
  4. Step 4: Simplify right side
    258,859.90x = 56,928,770,999.12
  5. Step 5: Solve for x
    x = 56,928,770,999.12/258,859.90
  6. Step 6: Final answer
    x = 219,921.17

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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.