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Finding the Fourth Proportional to 343,364.60, 515,265.60 and 201,209.60

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Solution

The fourth proportional to 343,364.60, 515,265.60 and 201,209.60 is: 301,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,364.60 : 515,265.60 = 201,209.60 : x
  2. Step 2: Convert to fraction form
    343,364.60/515,265.60 = 201,209.60/x
  3. Step 3: Cross multiply
    343,364.60x = 515,265.60 × 201,209.60
  4. Step 4: Simplify right side
    343,364.60x = 103,676,385,269.76
  5. Step 5: Solve for x
    x = 103,676,385,269.76/343,364.60
  6. Step 6: Final answer
    x = 301,942.56

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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.