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Finding the Fourth Proportional to 279,489.58, 419,175.59 and 89,966.89

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Solution

The fourth proportional to 279,489.58, 419,175.59 and 89,966.89 is: 134,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,489.58 : 419,175.59 = 89,966.89 : x
  2. Step 2: Convert to fraction form
    279,489.58/419,175.59 = 89,966.89/x
  3. Step 3: Cross multiply
    279,489.58x = 419,175.59 × 89,966.89
  4. Step 4: Simplify right side
    279,489.58x = 37,711,924,196.22
  5. Step 5: Solve for x
    x = 37,711,924,196.22/279,489.58
  6. Step 6: Final answer
    x = 134,931.41

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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.