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Finding the Fourth Proportional to 354,341.36, 488,994.90 and 193,195.10

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Solution

The fourth proportional to 354,341.36, 488,994.90 and 193,195.10 is: 266,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,341.36 : 488,994.90 = 193,195.10 : x
  2. Step 2: Convert to fraction form
    354,341.36/488,994.90 = 193,195.10/x
  3. Step 3: Cross multiply
    354,341.36x = 488,994.90 × 193,195.10
  4. Step 4: Simplify right side
    354,341.36x = 94,471,418,604.99
  5. Step 5: Solve for x
    x = 94,471,418,604.99/354,341.36
  6. Step 6: Final answer
    x = 266,611.32

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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.