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Finding the Fourth Proportional to 254,208.36, 381,314.72 and 64,668.90

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Solution

The fourth proportional to 254,208.36, 381,314.72 and 64,668.90 is: 97,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,208.36 : 381,314.72 = 64,668.90 : x
  2. Step 2: Convert to fraction form
    254,208.36/381,314.72 = 64,668.90/x
  3. Step 3: Cross multiply
    254,208.36x = 381,314.72 × 64,668.90
  4. Step 4: Simplify right side
    254,208.36x = 24,659,203,172.86
  5. Step 5: Solve for x
    x = 24,659,203,172.86/254,208.36
  6. Step 6: Final answer
    x = 97,003.90

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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.