Home / 425,944.76-638,849.37-141,611.72

Finding the Fourth Proportional to 425,944.76, 638,849.37 and 141,611.72

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Solution

The fourth proportional to 425,944.76, 638,849.37 and 141,611.72 is: 212,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,944.76 : 638,849.37 = 141,611.72 : x
  2. Step 2: Convert to fraction form
    425,944.76/638,849.37 = 141,611.72/x
  3. Step 3: Cross multiply
    425,944.76x = 638,849.37 × 141,611.72
  4. Step 4: Simplify right side
    425,944.76x = 90,468,558,106.62
  5. Step 5: Solve for x
    x = 90,468,558,106.62/425,944.76
  6. Step 6: Final answer
    x = 212,395.05

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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.