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Finding the Fourth Proportional to 211,527.52, 291,889.48 and 120,865.44

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Solution

The fourth proportional to 211,527.52, 291,889.48 and 120,865.44 is: 166,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,527.52 : 291,889.48 = 120,865.44 : x
  2. Step 2: Convert to fraction form
    211,527.52/291,889.48 = 120,865.44/x
  3. Step 3: Cross multiply
    211,527.52x = 291,889.48 × 120,865.44
  4. Step 4: Simplify right side
    211,527.52x = 35,279,350,431.57
  5. Step 5: Solve for x
    x = 35,279,350,431.57/211,527.52
  6. Step 6: Final answer
    x = 166,783.74

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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.