Home / 276,815.12-382,006.11-155,958.26

Finding the Fourth Proportional to 276,815.12, 382,006.11 and 155,958.26

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Solution

The fourth proportional to 276,815.12, 382,006.11 and 155,958.26 is: 215,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,815.12 : 382,006.11 = 155,958.26 : x
  2. Step 2: Convert to fraction form
    276,815.12/382,006.11 = 155,958.26/x
  3. Step 3: Cross multiply
    276,815.12x = 382,006.11 × 155,958.26
  4. Step 4: Simplify right side
    276,815.12x = 59,577,006,314.94
  5. Step 5: Solve for x
    x = 59,577,006,314.94/276,815.12
  6. Step 6: Final answer
    x = 215,223.10

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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.