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Finding the Fourth Proportional to 279,217.68, 418,846.23 and 79,554.30

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Solution

The fourth proportional to 279,217.68, 418,846.23 and 79,554.30 is: 119,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,217.68 : 418,846.23 = 79,554.30 : x
  2. Step 2: Convert to fraction form
    279,217.68/418,846.23 = 79,554.30/x
  3. Step 3: Cross multiply
    279,217.68x = 418,846.23 × 79,554.30
  4. Step 4: Simplify right side
    279,217.68x = 33,321,018,635.29
  5. Step 5: Solve for x
    x = 33,321,018,635.29/279,217.68
  6. Step 6: Final answer
    x = 119,337.07

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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.