Home / 306,742.40-423,194.96-177,610.38

Finding the Fourth Proportional to 306,742.40, 423,194.96 and 177,610.38

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Solution

The fourth proportional to 306,742.40, 423,194.96 and 177,610.38 is: 245,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,742.40 : 423,194.96 = 177,610.38 : x
  2. Step 2: Convert to fraction form
    306,742.40/423,194.96 = 177,610.38/x
  3. Step 3: Cross multiply
    306,742.40x = 423,194.96 × 177,610.38
  4. Step 4: Simplify right side
    306,742.40x = 75,163,816,771.63
  5. Step 5: Solve for x
    x = 75,163,816,771.63/306,742.40
  6. Step 6: Final answer
    x = 245,038.89

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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.