Home / 205,828.40-308,742.60-100,593.20

Finding the Fourth Proportional to 205,828.40, 308,742.60 and 100,593.20

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Solution

The fourth proportional to 205,828.40, 308,742.60 and 100,593.20 is: 150,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,828.40 : 308,742.60 = 100,593.20 : x
  2. Step 2: Convert to fraction form
    205,828.40/308,742.60 = 100,593.20/x
  3. Step 3: Cross multiply
    205,828.40x = 308,742.60 × 100,593.20
  4. Step 4: Simplify right side
    205,828.40x = 31,057,406,110.32
  5. Step 5: Solve for x
    x = 31,057,406,110.32/205,828.40
  6. Step 6: Final answer
    x = 150,889.80

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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.