Home / 268,313.50-402,659.79-128,083.06

Finding the Fourth Proportional to 268,313.50, 402,659.79 and 128,083.06

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Solution

The fourth proportional to 268,313.50, 402,659.79 and 128,083.06 is: 192,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,313.50 : 402,659.79 = 128,083.06 : x
  2. Step 2: Convert to fraction form
    268,313.50/402,659.79 = 128,083.06/x
  3. Step 3: Cross multiply
    268,313.50x = 402,659.79 × 128,083.06
  4. Step 4: Simplify right side
    268,313.50x = 51,573,898,042.16
  5. Step 5: Solve for x
    x = 51,573,898,042.16/268,313.50
  6. Step 6: Final answer
    x = 192,215.07

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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.