Home / 276,180.90-381,126.02-155,322.15

Finding the Fourth Proportional to 276,180.90, 381,126.02 and 155,322.15

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Solution

The fourth proportional to 276,180.90, 381,126.02 and 155,322.15 is: 214,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,180.90 : 381,126.02 = 155,322.15 : x
  2. Step 2: Convert to fraction form
    276,180.90/381,126.02 = 155,322.15/x
  3. Step 3: Cross multiply
    276,180.90x = 381,126.02 × 155,322.15
  4. Step 4: Simplify right side
    276,180.90x = 59,197,312,847.34
  5. Step 5: Solve for x
    x = 59,197,312,847.34/276,180.90
  6. Step 6: Final answer
    x = 214,342.53

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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.