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Finding the Fourth Proportional to 269,067, 371,312.46 and 155,955.36

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Solution

The fourth proportional to 269,067, 371,312.46 and 155,955.36 is: 215,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,067 : 371,312.46 = 155,955.36 : x
  2. Step 2: Convert to fraction form
    269,067/371,312.46 = 155,955.36/x
  3. Step 3: Cross multiply
    269,067x = 371,312.46 × 155,955.36
  4. Step 4: Simplify right side
    269,067x = 57,908,168,371.79
  5. Step 5: Solve for x
    x = 57,908,168,371.79/269,067
  6. Step 6: Final answer
    x = 215,218.40

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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.