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Finding the Fourth Proportional to 268,337.40, 402,506.10 and 166,860.60

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Solution

The fourth proportional to 268,337.40, 402,506.10 and 166,860.60 is: 250,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,337.40 : 402,506.10 = 166,860.60 : x
  2. Step 2: Convert to fraction form
    268,337.40/402,506.10 = 166,860.60/x
  3. Step 3: Cross multiply
    268,337.40x = 402,506.10 × 166,860.60
  4. Step 4: Simplify right side
    268,337.40x = 67,162,409,349.66
  5. Step 5: Solve for x
    x = 67,162,409,349.66/268,337.40
  6. Step 6: Final answer
    x = 250,290.90

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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.