Home / 276,216.81-381,175.43-155,358.06

Finding the Fourth Proportional to 276,216.81, 381,175.43 and 155,358.06

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Solution

The fourth proportional to 276,216.81, 381,175.43 and 155,358.06 is: 214,392.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,216.81 : 381,175.43 = 155,358.06 : x
  2. Step 2: Convert to fraction form
    276,216.81/381,175.43 = 155,358.06/x
  3. Step 3: Cross multiply
    276,216.81x = 381,175.43 × 155,358.06
  4. Step 4: Simplify right side
    276,216.81x = 59,218,674,547.68
  5. Step 5: Solve for x
    x = 59,218,674,547.68/276,216.81
  6. Step 6: Final answer
    x = 214,392.00

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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.