Home / 207,853.40-311,736.90-89,528.60

Finding the Fourth Proportional to 207,853.40, 311,736.90 and 89,528.60

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Solution

The fourth proportional to 207,853.40, 311,736.90 and 89,528.60 is: 134,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,853.40 : 311,736.90 = 89,528.60 : x
  2. Step 2: Convert to fraction form
    207,853.40/311,736.90 = 89,528.60/x
  3. Step 3: Cross multiply
    207,853.40x = 311,736.90 × 89,528.60
  4. Step 4: Simplify right side
    207,853.40x = 27,909,368,225.34
  5. Step 5: Solve for x
    x = 27,909,368,225.34/207,853.40
  6. Step 6: Final answer
    x = 134,274.29

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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.