Home / 225,512.48-311,066.40-145,044.96

Finding the Fourth Proportional to 225,512.48, 311,066.40 and 145,044.96

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Solution

The fourth proportional to 225,512.48, 311,066.40 and 145,044.96 is: 200,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,512.48 : 311,066.40 = 145,044.96 : x
  2. Step 2: Convert to fraction form
    225,512.48/311,066.40 = 145,044.96/x
  3. Step 3: Cross multiply
    225,512.48x = 311,066.40 × 145,044.96
  4. Step 4: Simplify right side
    225,512.48x = 45,118,613,545.34
  5. Step 5: Solve for x
    x = 45,118,613,545.34/225,512.48
  6. Step 6: Final answer
    x = 200,071.47

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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.