Home / 276,313.37-381,281.52-155,496.20

Finding the Fourth Proportional to 276,313.37, 381,281.52 and 155,496.20

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Solution

The fourth proportional to 276,313.37, 381,281.52 and 155,496.20 is: 214,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,313.37 : 381,281.52 = 155,496.20 : x
  2. Step 2: Convert to fraction form
    276,313.37/381,281.52 = 155,496.20/x
  3. Step 3: Cross multiply
    276,313.37x = 381,281.52 × 155,496.20
  4. Step 4: Simplify right side
    276,313.37x = 59,287,825,583.82
  5. Step 5: Solve for x
    x = 59,287,825,583.82/276,313.37
  6. Step 6: Final answer
    x = 214,567.35

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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.