Home / 276,776.57-381,988.23-155,941.72

Finding the Fourth Proportional to 276,776.57, 381,988.23 and 155,941.72

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Solution

The fourth proportional to 276,776.57, 381,988.23 and 155,941.72 is: 215,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,776.57 : 381,988.23 = 155,941.72 : x
  2. Step 2: Convert to fraction form
    276,776.57/381,988.23 = 155,941.72/x
  3. Step 3: Cross multiply
    276,776.57x = 381,988.23 × 155,941.72
  4. Step 4: Simplify right side
    276,776.57x = 59,567,901,605.96
  5. Step 5: Solve for x
    x = 59,567,901,605.96/276,776.57
  6. Step 6: Final answer
    x = 215,220.17

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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.