Home / 211,015.05-291,200.84-115,527.79

Finding the Fourth Proportional to 211,015.05, 291,200.84 and 115,527.79

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Solution

The fourth proportional to 211,015.05, 291,200.84 and 115,527.79 is: 159,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,015.05 : 291,200.84 = 115,527.79 : x
  2. Step 2: Convert to fraction form
    211,015.05/291,200.84 = 115,527.79/x
  3. Step 3: Cross multiply
    211,015.05x = 291,200.84 × 115,527.79
  4. Step 4: Simplify right side
    211,015.05x = 33,641,789,491.34
  5. Step 5: Solve for x
    x = 33,641,789,491.34/211,015.05
  6. Step 6: Final answer
    x = 159,428.39

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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.