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Finding the Fourth Proportional to 203,572.94, 305,216.33 and 89,666.69

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Solution

The fourth proportional to 203,572.94, 305,216.33 and 89,666.69 is: 134,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,572.94 : 305,216.33 = 89,666.69 : x
  2. Step 2: Convert to fraction form
    203,572.94/305,216.33 = 89,666.69/x
  3. Step 3: Cross multiply
    203,572.94x = 305,216.33 × 89,666.69
  4. Step 4: Simplify right side
    203,572.94x = 27,367,736,070.63
  5. Step 5: Solve for x
    x = 27,367,736,070.63/203,572.94
  6. Step 6: Final answer
    x = 134,437.01

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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.