Home / 258,484.50-356,718.48-143,771.45

Finding the Fourth Proportional to 258,484.50, 356,718.48 and 143,771.45

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Solution

The fourth proportional to 258,484.50, 356,718.48 and 143,771.45 is: 198,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,484.50 : 356,718.48 = 143,771.45 : x
  2. Step 2: Convert to fraction form
    258,484.50/356,718.48 = 143,771.45/x
  3. Step 3: Cross multiply
    258,484.50x = 356,718.48 × 143,771.45
  4. Step 4: Simplify right side
    258,484.50x = 51,285,934,003.19
  5. Step 5: Solve for x
    x = 51,285,934,003.19/258,484.50
  6. Step 6: Final answer
    x = 198,410.09

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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.