Home / 276,300.13-381,278.59-155,446.51

Finding the Fourth Proportional to 276,300.13, 381,278.59 and 155,446.51

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Solution

The fourth proportional to 276,300.13, 381,278.59 and 155,446.51 is: 214,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,300.13 : 381,278.59 = 155,446.51 : x
  2. Step 2: Convert to fraction form
    276,300.13/381,278.59 = 155,446.51/x
  3. Step 3: Cross multiply
    276,300.13x = 381,278.59 × 155,446.51
  4. Step 4: Simplify right side
    276,300.13x = 59,268,426,153.22
  5. Step 5: Solve for x
    x = 59,268,426,153.22/276,300.13
  6. Step 6: Final answer
    x = 214,507.41

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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.