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Finding the Fourth Proportional to 316,800.54, 475,202.70 and 80,143.11

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Solution

The fourth proportional to 316,800.54, 475,202.70 and 80,143.11 is: 120,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,800.54 : 475,202.70 = 80,143.11 : x
  2. Step 2: Convert to fraction form
    316,800.54/475,202.70 = 80,143.11/x
  3. Step 3: Cross multiply
    316,800.54x = 475,202.70 × 80,143.11
  4. Step 4: Simplify right side
    316,800.54x = 38,084,222,258.40
  5. Step 5: Solve for x
    x = 38,084,222,258.40/316,800.54
  6. Step 6: Final answer
    x = 120,215.14

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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.