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Finding the Fourth Proportional to 279,899.40, 419,695.02 and 191,253

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Solution

The fourth proportional to 279,899.40, 419,695.02 and 191,253 is: 286,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,899.40 : 419,695.02 = 191,253 : x
  2. Step 2: Convert to fraction form
    279,899.40/419,695.02 = 191,253/x
  3. Step 3: Cross multiply
    279,899.40x = 419,695.02 × 191,253
  4. Step 4: Simplify right side
    279,899.40x = 80,267,931,660.06
  5. Step 5: Solve for x
    x = 80,267,931,660.06/279,899.40
  6. Step 6: Final answer
    x = 286,774.22

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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.