Home / 210,528.48-290,517.12-115,035.96

Finding the Fourth Proportional to 210,528.48, 290,517.12 and 115,035.96

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Solution

The fourth proportional to 210,528.48, 290,517.12 and 115,035.96 is: 158,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,528.48 : 290,517.12 = 115,035.96 : x
  2. Step 2: Convert to fraction form
    210,528.48/290,517.12 = 115,035.96/x
  3. Step 3: Cross multiply
    210,528.48x = 290,517.12 × 115,035.96
  4. Step 4: Simplify right side
    210,528.48x = 33,419,915,795.64
  5. Step 5: Solve for x
    x = 33,419,915,795.64/210,528.48
  6. Step 6: Final answer
    x = 158,742.97

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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.