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Finding the Fourth Proportional to 211,959.72, 292,787.46 and 148,507.56

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Solution

The fourth proportional to 211,959.72, 292,787.46 and 148,507.56 is: 205,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,959.72 : 292,787.46 = 148,507.56 : x
  2. Step 2: Convert to fraction form
    211,959.72/292,787.46 = 148,507.56/x
  3. Step 3: Cross multiply
    211,959.72x = 292,787.46 × 148,507.56
  4. Step 4: Simplify right side
    211,959.72x = 43,481,151,283.20
  5. Step 5: Solve for x
    x = 43,481,151,283.20/211,959.72
  6. Step 6: Final answer
    x = 205,138.75

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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.