Home / 258,295.85-356,445.86-143,571.50

Finding the Fourth Proportional to 258,295.85, 356,445.86 and 143,571.50

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Solution

The fourth proportional to 258,295.85, 356,445.86 and 143,571.50 is: 198,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,295.85 : 356,445.86 = 143,571.50 : x
  2. Step 2: Convert to fraction form
    258,295.85/356,445.86 = 143,571.50/x
  3. Step 3: Cross multiply
    258,295.85x = 356,445.86 × 143,571.50
  4. Step 4: Simplify right side
    258,295.85x = 51,175,464,288.90
  5. Step 5: Solve for x
    x = 51,175,464,288.90/258,295.85
  6. Step 6: Final answer
    x = 198,127.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.