Home / 276,321.16-381,369.81-160,017.72

Finding the Fourth Proportional to 276,321.16, 381,369.81 and 160,017.72

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Solution

The fourth proportional to 276,321.16, 381,369.81 and 160,017.72 is: 220,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,321.16 : 381,369.81 = 160,017.72 : x
  2. Step 2: Convert to fraction form
    276,321.16/381,369.81 = 160,017.72/x
  3. Step 3: Cross multiply
    276,321.16x = 381,369.81 × 160,017.72
  4. Step 4: Simplify right side
    276,321.16x = 61,025,927,473.03
  5. Step 5: Solve for x
    x = 61,025,927,473.03/276,321.16
  6. Step 6: Final answer
    x = 220,851.45

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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.