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Finding the Fourth Proportional to 268,199.20, 402,042.80 and 99,674.40

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Solution

The fourth proportional to 268,199.20, 402,042.80 and 99,674.40 is: 149,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,199.20 : 402,042.80 = 99,674.40 : x
  2. Step 2: Convert to fraction form
    268,199.20/402,042.80 = 99,674.40/x
  3. Step 3: Cross multiply
    268,199.20x = 402,042.80 × 99,674.40
  4. Step 4: Simplify right side
    268,199.20x = 40,073,374,864.32
  5. Step 5: Solve for x
    x = 40,073,374,864.32/268,199.20
  6. Step 6: Final answer
    x = 149,416.46

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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.