Home / 232,087-320,280.38-131,491.80

Finding the Fourth Proportional to 232,087, 320,280.38 and 131,491.80

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Solution

The fourth proportional to 232,087, 320,280.38 and 131,491.80 is: 181,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,087 : 320,280.38 = 131,491.80 : x
  2. Step 2: Convert to fraction form
    232,087/320,280.38 = 131,491.80/x
  3. Step 3: Cross multiply
    232,087x = 320,280.38 × 131,491.80
  4. Step 4: Simplify right side
    232,087x = 42,114,243,670.88
  5. Step 5: Solve for x
    x = 42,114,243,670.88/232,087
  6. Step 6: Final answer
    x = 181,458.87

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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.