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Finding the Fourth Proportional to 251,882.10, 377,815.05 and 83,410.20

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Solution

The fourth proportional to 251,882.10, 377,815.05 and 83,410.20 is: 125,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,882.10 : 377,815.05 = 83,410.20 : x
  2. Step 2: Convert to fraction form
    251,882.10/377,815.05 = 83,410.20/x
  3. Step 3: Cross multiply
    251,882.10x = 377,815.05 × 83,410.20
  4. Step 4: Simplify right side
    251,882.10x = 31,513,628,883.51
  5. Step 5: Solve for x
    x = 31,513,628,883.51/251,882.10
  6. Step 6: Final answer
    x = 125,112.62

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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.