Home / 276,150.81-381,090.33-153,644.96

Finding the Fourth Proportional to 276,150.81, 381,090.33 and 153,644.96

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Solution

The fourth proportional to 276,150.81, 381,090.33 and 153,644.96 is: 212,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,150.81 : 381,090.33 = 153,644.96 : x
  2. Step 2: Convert to fraction form
    276,150.81/381,090.33 = 153,644.96/x
  3. Step 3: Cross multiply
    276,150.81x = 381,090.33 × 153,644.96
  4. Step 4: Simplify right side
    276,150.81x = 58,552,608,509.24
  5. Step 5: Solve for x
    x = 58,552,608,509.24/276,150.81
  6. Step 6: Final answer
    x = 212,031.28

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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.