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Finding the Fourth Proportional to 188,776.84, 283,164.92 and 129,432.60

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Solution

The fourth proportional to 188,776.84, 283,164.92 and 129,432.60 is: 194,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,776.84 : 283,164.92 = 129,432.60 : x
  2. Step 2: Convert to fraction form
    188,776.84/283,164.92 = 129,432.60/x
  3. Step 3: Cross multiply
    188,776.84x = 283,164.92 × 129,432.60
  4. Step 4: Simplify right side
    188,776.84x = 36,650,771,824.39
  5. Step 5: Solve for x
    x = 36,650,771,824.39/188,776.84
  6. Step 6: Final answer
    x = 194,148.67

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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.