Home / 276,971.58-415,309.75-143,717.67

Finding the Fourth Proportional to 276,971.58, 415,309.75 and 143,717.67

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Solution

The fourth proportional to 276,971.58, 415,309.75 and 143,717.67 is: 215,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,971.58 : 415,309.75 = 143,717.67 : x
  2. Step 2: Convert to fraction form
    276,971.58/415,309.75 = 143,717.67/x
  3. Step 3: Cross multiply
    276,971.58x = 415,309.75 × 143,717.67
  4. Step 4: Simplify right side
    276,971.58x = 59,687,349,598.28
  5. Step 5: Solve for x
    x = 59,687,349,598.28/276,971.58
  6. Step 6: Final answer
    x = 215,499.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.