Home / 279,685.40-419,588.85-102,192.13

Finding the Fourth Proportional to 279,685.40, 419,588.85 and 102,192.13

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Solution

The fourth proportional to 279,685.40, 419,588.85 and 102,192.13 is: 153,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,685.40 : 419,588.85 = 102,192.13 : x
  2. Step 2: Convert to fraction form
    279,685.40/419,588.85 = 102,192.13/x
  3. Step 3: Cross multiply
    279,685.40x = 419,588.85 × 102,192.13
  4. Step 4: Simplify right side
    279,685.40x = 42,878,676,207.81
  5. Step 5: Solve for x
    x = 42,878,676,207.81/279,685.40
  6. Step 6: Final answer
    x = 153,310.38

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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.