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Finding the Fourth Proportional to 207,487.58, 286,229.43 and 126,774.45

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Solution

The fourth proportional to 207,487.58, 286,229.43 and 126,774.45 is: 174,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,487.58 : 286,229.43 = 126,774.45 : x
  2. Step 2: Convert to fraction form
    207,487.58/286,229.43 = 126,774.45/x
  3. Step 3: Cross multiply
    207,487.58x = 286,229.43 × 126,774.45
  4. Step 4: Simplify right side
    207,487.58x = 36,286,578,562.06
  5. Step 5: Solve for x
    x = 36,286,578,562.06/207,487.58
  6. Step 6: Final answer
    x = 174,885.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.