Home / 276,223.95-381,185.25-155,365.17

Finding the Fourth Proportional to 276,223.95, 381,185.25 and 155,365.17

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Solution

The fourth proportional to 276,223.95, 381,185.25 and 155,365.17 is: 214,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,223.95 : 381,185.25 = 155,365.17 : x
  2. Step 2: Convert to fraction form
    276,223.95/381,185.25 = 155,365.17/x
  3. Step 3: Cross multiply
    276,223.95x = 381,185.25 × 155,365.17
  4. Step 4: Simplify right side
    276,223.95x = 59,222,911,167.74
  5. Step 5: Solve for x
    x = 59,222,911,167.74/276,223.95
  6. Step 6: Final answer
    x = 214,401.80

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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.