Home / 238,228.28-356,875.26-138,178.28

Finding the Fourth Proportional to 238,228.28, 356,875.26 and 138,178.28

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Solution

The fourth proportional to 238,228.28, 356,875.26 and 138,178.28 is: 206,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,228.28 : 356,875.26 = 138,178.28 : x
  2. Step 2: Convert to fraction form
    238,228.28/356,875.26 = 138,178.28/x
  3. Step 3: Cross multiply
    238,228.28x = 356,875.26 × 138,178.28
  4. Step 4: Simplify right side
    238,228.28x = 49,312,409,601.35
  5. Step 5: Solve for x
    x = 49,312,409,601.35/238,228.28
  6. Step 6: Final answer
    x = 206,996.46

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1.5x scale

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.