Home / 276,218.87-381,557.27-216,542.93

Finding the Fourth Proportional to 276,218.87, 381,557.27 and 216,542.93

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Solution

The fourth proportional to 276,218.87, 381,557.27 and 216,542.93 is: 299,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,218.87 : 381,557.27 = 216,542.93 : x
  2. Step 2: Convert to fraction form
    276,218.87/381,557.27 = 216,542.93/x
  3. Step 3: Cross multiply
    276,218.87x = 381,557.27 × 216,542.93
  4. Step 4: Simplify right side
    276,218.87x = 82,623,528,125.89
  5. Step 5: Solve for x
    x = 82,623,528,125.89/276,218.87
  6. Step 6: Final answer
    x = 299,123.40

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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.