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Finding the Fourth Proportional to 268,003.90, 402,005.85 and 168,276.70

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Solution

The fourth proportional to 268,003.90, 402,005.85 and 168,276.70 is: 252,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,003.90 : 402,005.85 = 168,276.70 : x
  2. Step 2: Convert to fraction form
    268,003.90/402,005.85 = 168,276.70/x
  3. Step 3: Cross multiply
    268,003.90x = 402,005.85 × 168,276.70
  4. Step 4: Simplify right side
    268,003.90x = 67,648,217,818.70
  5. Step 5: Solve for x
    x = 67,648,217,818.70/268,003.90
  6. Step 6: Final answer
    x = 252,415.05

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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.