Home / 276,321.16-381,321.30-157,089.16

Finding the Fourth Proportional to 276,321.16, 381,321.30 and 157,089.16

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Solution

The fourth proportional to 276,321.16, 381,321.30 and 157,089.16 is: 216,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,321.16 : 381,321.30 = 157,089.16 : x
  2. Step 2: Convert to fraction form
    276,321.16/381,321.30 = 157,089.16/x
  3. Step 3: Cross multiply
    276,321.16x = 381,321.30 × 157,089.16
  4. Step 4: Simplify right side
    276,321.16x = 59,901,442,707.11
  5. Step 5: Solve for x
    x = 59,901,442,707.11/276,321.16
  6. Step 6: Final answer
    x = 216,781.96

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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.