Home / 306,742.70-423,195.38-177,610.70

Finding the Fourth Proportional to 306,742.70, 423,195.38 and 177,610.70

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Solution

The fourth proportional to 306,742.70, 423,195.38 and 177,610.70 is: 245,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,742.70 : 423,195.38 = 177,610.70 : x
  2. Step 2: Convert to fraction form
    306,742.70/423,195.38 = 177,610.70/x
  3. Step 3: Cross multiply
    306,742.70x = 423,195.38 × 177,610.70
  4. Step 4: Simplify right side
    306,742.70x = 75,164,027,848.50
  5. Step 5: Solve for x
    x = 75,164,027,848.50/306,742.70
  6. Step 6: Final answer
    x = 245,039.34

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1.5x scale

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.