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Finding the Fourth Proportional to 505,448.49, 758,158.16 and 131,471.49

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Solution

The fourth proportional to 505,448.49, 758,158.16 and 131,471.49 is: 197,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,448.49 : 758,158.16 = 131,471.49 : x
  2. Step 2: Convert to fraction form
    505,448.49/758,158.16 = 131,471.49/x
  3. Step 3: Cross multiply
    505,448.49x = 758,158.16 × 131,471.49
  4. Step 4: Simplify right side
    505,448.49x = 99,676,182,293.50
  5. Step 5: Solve for x
    x = 99,676,182,293.50/505,448.49
  6. Step 6: Final answer
    x = 197,203.44

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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.