Home / 276,282.15-381,268.80-155,423.52

Finding the Fourth Proportional to 276,282.15, 381,268.80 and 155,423.52

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Solution

The fourth proportional to 276,282.15, 381,268.80 and 155,423.52 is: 214,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,282.15 : 381,268.80 = 155,423.52 : x
  2. Step 2: Convert to fraction form
    276,282.15/381,268.80 = 155,423.52/x
  3. Step 3: Cross multiply
    276,282.15x = 381,268.80 × 155,423.52
  4. Step 4: Simplify right side
    276,282.15x = 59,258,137,055.83
  5. Step 5: Solve for x
    x = 59,258,137,055.83/276,282.15
  6. Step 6: Final answer
    x = 214,484.14

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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.