Home / 258,468.24-356,642.70-143,731.84

Finding the Fourth Proportional to 258,468.24, 356,642.70 and 143,731.84

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Solution

The fourth proportional to 258,468.24, 356,642.70 and 143,731.84 is: 198,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,468.24 : 356,642.70 = 143,731.84 : x
  2. Step 2: Convert to fraction form
    258,468.24/356,642.70 = 143,731.84/x
  3. Step 3: Cross multiply
    258,468.24x = 356,642.70 × 143,731.84
  4. Step 4: Simplify right side
    258,468.24x = 51,260,911,493.57
  5. Step 5: Solve for x
    x = 51,260,911,493.57/258,468.24
  6. Step 6: Final answer
    x = 198,325.77

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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.