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Finding the Fourth Proportional to 279,572.67, 419,300.22 and 90,050.01

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Solution

The fourth proportional to 279,572.67, 419,300.22 and 90,050.01 is: 135,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,572.67 : 419,300.22 = 90,050.01 : x
  2. Step 2: Convert to fraction form
    279,572.67/419,300.22 = 90,050.01/x
  3. Step 3: Cross multiply
    279,572.67x = 419,300.22 × 90,050.01
  4. Step 4: Simplify right side
    279,572.67x = 37,757,989,004.00
  5. Step 5: Solve for x
    x = 37,757,989,004.00/279,572.67
  6. Step 6: Final answer
    x = 135,056.08

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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.