Home / 236,828.40-356,117.40-198,337.20

Finding the Fourth Proportional to 236,828.40, 356,117.40 and 198,337.20

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Solution

The fourth proportional to 236,828.40, 356,117.40 and 198,337.20 is: 298,238.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,828.40 : 356,117.40 = 198,337.20 : x
  2. Step 2: Convert to fraction form
    236,828.40/356,117.40 = 198,337.20/x
  3. Step 3: Cross multiply
    236,828.40x = 356,117.40 × 198,337.20
  4. Step 4: Simplify right side
    236,828.40x = 70,631,327,987.28
  5. Step 5: Solve for x
    x = 70,631,327,987.28/236,828.40
  6. Step 6: Final answer
    x = 298,238.42

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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.