Home / 215,008.41-320,698.51-186,705.90

Finding the Fourth Proportional to 215,008.41, 320,698.51 and 186,705.90

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Solution

The fourth proportional to 215,008.41, 320,698.51 and 186,705.90 is: 278,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,008.41 : 320,698.51 = 186,705.90 : x
  2. Step 2: Convert to fraction form
    215,008.41/320,698.51 = 186,705.90/x
  3. Step 3: Cross multiply
    215,008.41x = 320,698.51 × 186,705.90
  4. Step 4: Simplify right side
    215,008.41x = 59,876,303,471.44
  5. Step 5: Solve for x
    x = 59,876,303,471.44/215,008.41
  6. Step 6: Final answer
    x = 278,483.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.