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Finding the Fourth Proportional to 189,003.86, 260,466.45 and 135,195.45

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Solution

The fourth proportional to 189,003.86, 260,466.45 and 135,195.45 is: 186,313.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,003.86 : 260,466.45 = 135,195.45 : x
  2. Step 2: Convert to fraction form
    189,003.86/260,466.45 = 135,195.45/x
  3. Step 3: Cross multiply
    189,003.86x = 260,466.45 × 135,195.45
  4. Step 4: Simplify right side
    189,003.86x = 35,213,878,917.65
  5. Step 5: Solve for x
    x = 35,213,878,917.65/189,003.86
  6. Step 6: Final answer
    x = 186,313.02

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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.