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Finding the Fourth Proportional to 268,341.80, 402,512.70 and 201,419.60

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Solution

The fourth proportional to 268,341.80, 402,512.70 and 201,419.60 is: 302,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,341.80 : 402,512.70 = 201,419.60 : x
  2. Step 2: Convert to fraction form
    268,341.80/402,512.70 = 201,419.60/x
  3. Step 3: Cross multiply
    268,341.80x = 402,512.70 × 201,419.60
  4. Step 4: Simplify right side
    268,341.80x = 81,073,947,028.92
  5. Step 5: Solve for x
    x = 81,073,947,028.92/268,341.80
  6. Step 6: Final answer
    x = 302,129.40

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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.