Home / 276,256.29-381,267.41-155,402.67

Finding the Fourth Proportional to 276,256.29, 381,267.41 and 155,402.67

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Solution

The fourth proportional to 276,256.29, 381,267.41 and 155,402.67 is: 214,474.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,256.29 : 381,267.41 = 155,402.67 : x
  2. Step 2: Convert to fraction form
    276,256.29/381,267.41 = 155,402.67/x
  3. Step 3: Cross multiply
    276,256.29x = 381,267.41 × 155,402.67
  4. Step 4: Simplify right side
    276,256.29x = 59,249,972,720.97
  5. Step 5: Solve for x
    x = 59,249,972,720.97/276,256.29
  6. Step 6: Final answer
    x = 214,474.66

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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.