Home / 270,663.18-405,727.02-128,258.34

Finding the Fourth Proportional to 270,663.18, 405,727.02 and 128,258.34

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Solution

The fourth proportional to 270,663.18, 405,727.02 and 128,258.34 is: 192,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,663.18 : 405,727.02 = 128,258.34 : x
  2. Step 2: Convert to fraction form
    270,663.18/405,727.02 = 128,258.34/x
  3. Step 3: Cross multiply
    270,663.18x = 405,727.02 × 128,258.34
  4. Step 4: Simplify right side
    270,663.18x = 52,037,874,078.35
  5. Step 5: Solve for x
    x = 52,037,874,078.35/270,663.18
  6. Step 6: Final answer
    x = 192,260.63

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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.