Home / 276,437.29-381,495.74-155,586.40

Finding the Fourth Proportional to 276,437.29, 381,495.74 and 155,586.40

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Solution

The fourth proportional to 276,437.29, 381,495.74 and 155,586.40 is: 214,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,437.29 : 381,495.74 = 155,586.40 : x
  2. Step 2: Convert to fraction form
    276,437.29/381,495.74 = 155,586.40/x
  3. Step 3: Cross multiply
    276,437.29x = 381,495.74 × 155,586.40
  4. Step 4: Simplify right side
    276,437.29x = 59,355,550,091.35
  5. Step 5: Solve for x
    x = 59,355,550,091.35/276,437.29
  6. Step 6: Final answer
    x = 214,716.15

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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.