Home / 276,979.34-382,249.46-154,485.47

Finding the Fourth Proportional to 276,979.34, 382,249.46 and 154,485.47

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Solution

The fourth proportional to 276,979.34, 382,249.46 and 154,485.47 is: 213,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,979.34 : 382,249.46 = 154,485.47 : x
  2. Step 2: Convert to fraction form
    276,979.34/382,249.46 = 154,485.47/x
  3. Step 3: Cross multiply
    276,979.34x = 382,249.46 × 154,485.47
  4. Step 4: Simplify right side
    276,979.34x = 59,051,988,827.18
  5. Step 5: Solve for x
    x = 59,051,988,827.18/276,979.34
  6. Step 6: Final answer
    x = 213,199.97

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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.