Home / 276,561.34-381,661.82-155,706.98

Finding the Fourth Proportional to 276,561.34, 381,661.82 and 155,706.98

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Solution

The fourth proportional to 276,561.34, 381,661.82 and 155,706.98 is: 214,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,561.34 : 381,661.82 = 155,706.98 : x
  2. Step 2: Convert to fraction form
    276,561.34/381,661.82 = 155,706.98/x
  3. Step 3: Cross multiply
    276,561.34x = 381,661.82 × 155,706.98
  4. Step 4: Simplify right side
    276,561.34x = 59,427,411,366.68
  5. Step 5: Solve for x
    x = 59,427,411,366.68/276,561.34
  6. Step 6: Final answer
    x = 214,879.68

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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.