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Finding the Fourth Proportional to 265,503.60, 398,255.40 and 230,511.60

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Solution

The fourth proportional to 265,503.60, 398,255.40 and 230,511.60 is: 345,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,503.60 : 398,255.40 = 230,511.60 : x
  2. Step 2: Convert to fraction form
    265,503.60/398,255.40 = 230,511.60/x
  3. Step 3: Cross multiply
    265,503.60x = 398,255.40 × 230,511.60
  4. Step 4: Simplify right side
    265,503.60x = 91,802,489,462.64
  5. Step 5: Solve for x
    x = 91,802,489,462.64/265,503.60
  6. Step 6: Final answer
    x = 345,767.40

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1.5x scale

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.