Home / 276,975.38-415,518.96-87,465.34

Finding the Fourth Proportional to 276,975.38, 415,518.96 and 87,465.34

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Solution

The fourth proportional to 276,975.38, 415,518.96 and 87,465.34 is: 131,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,975.38 : 415,518.96 = 87,465.34 : x
  2. Step 2: Convert to fraction form
    276,975.38/415,518.96 = 87,465.34/x
  3. Step 3: Cross multiply
    276,975.38x = 415,518.96 × 87,465.34
  4. Step 4: Simplify right side
    276,975.38x = 36,343,507,112.85
  5. Step 5: Solve for x
    x = 36,343,507,112.85/276,975.38
  6. Step 6: Final answer
    x = 131,215.66

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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.