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Finding the Fourth Proportional to 207,459.78, 286,300.17 and 126,885.84

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Solution

The fourth proportional to 207,459.78, 286,300.17 and 126,885.84 is: 175,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,459.78 : 286,300.17 = 126,885.84 : x
  2. Step 2: Convert to fraction form
    207,459.78/286,300.17 = 126,885.84/x
  3. Step 3: Cross multiply
    207,459.78x = 286,300.17 × 126,885.84
  4. Step 4: Simplify right side
    207,459.78x = 36,327,437,562.59
  5. Step 5: Solve for x
    x = 36,327,437,562.59/207,459.78
  6. Step 6: Final answer
    x = 175,105.93

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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.