Home / 258,022.26-387,033.39-145,807.29

Finding the Fourth Proportional to 258,022.26, 387,033.39 and 145,807.29

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Solution

The fourth proportional to 258,022.26, 387,033.39 and 145,807.29 is: 218,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,022.26 : 387,033.39 = 145,807.29 : x
  2. Step 2: Convert to fraction form
    258,022.26/387,033.39 = 145,807.29/x
  3. Step 3: Cross multiply
    258,022.26x = 387,033.39 × 145,807.29
  4. Step 4: Simplify right side
    258,022.26x = 56,432,289,735.41
  5. Step 5: Solve for x
    x = 56,432,289,735.41/258,022.26
  6. Step 6: Final answer
    x = 218,710.94

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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.