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Finding the Fourth Proportional to 254,133.96, 381,214.62 and 67,140.36

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Solution

The fourth proportional to 254,133.96, 381,214.62 and 67,140.36 is: 100,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,133.96 : 381,214.62 = 67,140.36 : x
  2. Step 2: Convert to fraction form
    254,133.96/381,214.62 = 67,140.36/x
  3. Step 3: Cross multiply
    254,133.96x = 381,214.62 × 67,140.36
  4. Step 4: Simplify right side
    254,133.96x = 25,594,886,824.06
  5. Step 5: Solve for x
    x = 25,594,886,824.06/254,133.96
  6. Step 6: Final answer
    x = 100,714.15

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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.