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Finding the Fourth Proportional to 254,220.30, 381,330.45 and 64,680.30

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Solution

The fourth proportional to 254,220.30, 381,330.45 and 64,680.30 is: 97,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,220.30 : 381,330.45 = 64,680.30 : x
  2. Step 2: Convert to fraction form
    254,220.30/381,330.45 = 64,680.30/x
  3. Step 3: Cross multiply
    254,220.30x = 381,330.45 × 64,680.30
  4. Step 4: Simplify right side
    254,220.30x = 24,664,567,905.14
  5. Step 5: Solve for x
    x = 24,664,567,905.14/254,220.30
  6. Step 6: Final answer
    x = 97,020.45

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Similar ratio
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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.