Home / 258,127.20-356,216.40-149,222.88

Finding the Fourth Proportional to 258,127.20, 356,216.40 and 149,222.88

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Solution

The fourth proportional to 258,127.20, 356,216.40 and 149,222.88 is: 205,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,127.20 : 356,216.40 = 149,222.88 : x
  2. Step 2: Convert to fraction form
    258,127.20/356,216.40 = 149,222.88/x
  3. Step 3: Cross multiply
    258,127.20x = 356,216.40 × 149,222.88
  4. Step 4: Simplify right side
    258,127.20x = 53,155,637,111.23
  5. Step 5: Solve for x
    x = 53,155,637,111.23/258,127.20
  6. Step 6: Final answer
    x = 205,928.07

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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.