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Finding the Fourth Proportional to 279,477.65, 419,216.66 and 89,937.98

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Solution

The fourth proportional to 279,477.65, 419,216.66 and 89,937.98 is: 134,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,477.65 : 419,216.66 = 89,937.98 : x
  2. Step 2: Convert to fraction form
    279,477.65/419,216.66 = 89,937.98/x
  3. Step 3: Cross multiply
    279,477.65x = 419,216.66 × 89,937.98
  4. Step 4: Simplify right side
    279,477.65x = 37,703,497,711.51
  5. Step 5: Solve for x
    x = 37,703,497,711.51/279,477.65
  6. Step 6: Final answer
    x = 134,907.03

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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.