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Finding the Fourth Proportional to 379,385.10, 569,110.05 and 130,067.10

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Solution

The fourth proportional to 379,385.10, 569,110.05 and 130,067.10 is: 195,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,385.10 : 569,110.05 = 130,067.10 : x
  2. Step 2: Convert to fraction form
    379,385.10/569,110.05 = 130,067.10/x
  3. Step 3: Cross multiply
    379,385.10x = 569,110.05 × 130,067.10
  4. Step 4: Simplify right side
    379,385.10x = 74,022,493,784.36
  5. Step 5: Solve for x
    x = 74,022,493,784.36/379,385.10
  6. Step 6: Final answer
    x = 195,111.76

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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.