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Finding the Fourth Proportional to 279,373.95, 419,126.00 and 79,697.07

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Solution

The fourth proportional to 279,373.95, 419,126.00 and 79,697.07 is: 119,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,373.95 : 419,126.00 = 79,697.07 : x
  2. Step 2: Convert to fraction form
    279,373.95/419,126.00 = 79,697.07/x
  3. Step 3: Cross multiply
    279,373.95x = 419,126.00 × 79,697.07
  4. Step 4: Simplify right side
    279,373.95x = 33,403,113,762.33
  5. Step 5: Solve for x
    x = 33,403,113,762.33/279,373.95
  6. Step 6: Final answer
    x = 119,564.17

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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.