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Finding the Fourth Proportional to 351,490.08, 485,053.90 and 190,341.44

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Solution

The fourth proportional to 351,490.08, 485,053.90 and 190,341.44 is: 262,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,490.08 : 485,053.90 = 190,341.44 : x
  2. Step 2: Convert to fraction form
    351,490.08/485,053.90 = 190,341.44/x
  3. Step 3: Cross multiply
    351,490.08x = 485,053.90 × 190,341.44
  4. Step 4: Simplify right side
    351,490.08x = 92,325,857,803.62
  5. Step 5: Solve for x
    x = 92,325,857,803.62/351,490.08
  6. Step 6: Final answer
    x = 262,669.88

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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.