Home / 398,733.20-598,272.60-201,741.20

Finding the Fourth Proportional to 398,733.20, 598,272.60 and 201,741.20

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Solution

The fourth proportional to 398,733.20, 598,272.60 and 201,741.20 is: 302,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,733.20 : 598,272.60 = 201,741.20 : x
  2. Step 2: Convert to fraction form
    398,733.20/598,272.60 = 201,741.20/x
  3. Step 3: Cross multiply
    398,733.20x = 598,272.60 × 201,741.20
  4. Step 4: Simplify right side
    398,733.20x = 120,696,232,251.12
  5. Step 5: Solve for x
    x = 120,696,232,251.12/398,733.20
  6. Step 6: Final answer
    x = 302,699.23

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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.