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Finding the Fourth Proportional to 550,119.02, 825,108.42 and 212,928.98

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Solution

The fourth proportional to 550,119.02, 825,108.42 and 212,928.98 is: 319,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,119.02 : 825,108.42 = 212,928.98 : x
  2. Step 2: Convert to fraction form
    550,119.02/825,108.42 = 212,928.98/x
  3. Step 3: Cross multiply
    550,119.02x = 825,108.42 × 212,928.98
  4. Step 4: Simplify right side
    550,119.02x = 175,689,490,134.47
  5. Step 5: Solve for x
    x = 175,689,490,134.47/550,119.02
  6. Step 6: Final answer
    x = 319,366.33

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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.