Home / 276,285.06-381,242.48-155,423.84

Finding the Fourth Proportional to 276,285.06, 381,242.48 and 155,423.84

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Solution

The fourth proportional to 276,285.06, 381,242.48 and 155,423.84 is: 214,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,285.06 : 381,242.48 = 155,423.84 : x
  2. Step 2: Convert to fraction form
    276,285.06/381,242.48 = 155,423.84/x
  3. Step 3: Cross multiply
    276,285.06x = 381,242.48 × 155,423.84
  4. Step 4: Simplify right side
    276,285.06x = 59,254,171,554.39
  5. Step 5: Solve for x
    x = 59,254,171,554.39/276,285.06
  6. Step 6: Final answer
    x = 214,467.52

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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.