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Finding the Fourth Proportional to 291,212.28, 436,818.02 and 91,550.12

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Solution

The fourth proportional to 291,212.28, 436,818.02 and 91,550.12 is: 137,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,212.28 : 436,818.02 = 91,550.12 : x
  2. Step 2: Convert to fraction form
    291,212.28/436,818.02 = 91,550.12/x
  3. Step 3: Cross multiply
    291,212.28x = 436,818.02 × 91,550.12
  4. Step 4: Simplify right side
    291,212.28x = 39,990,739,507.32
  5. Step 5: Solve for x
    x = 39,990,739,507.32/291,212.28
  6. Step 6: Final answer
    x = 137,325.05

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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.