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Finding the Fourth Proportional to 268,348.80, 402,523.20 and 201,426.60

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Solution

The fourth proportional to 268,348.80, 402,523.20 and 201,426.60 is: 302,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,348.80 : 402,523.20 = 201,426.60 : x
  2. Step 2: Convert to fraction form
    268,348.80/402,523.20 = 201,426.60/x
  3. Step 3: Cross multiply
    268,348.80x = 402,523.20 × 201,426.60
  4. Step 4: Simplify right side
    268,348.80x = 81,078,879,597.12
  5. Step 5: Solve for x
    x = 81,078,879,597.12/268,348.80
  6. Step 6: Final answer
    x = 302,139.90

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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.