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Finding the Fourth Proportional to 355,000.40, 532,889.40 and 222,030.80

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Solution

The fourth proportional to 355,000.40, 532,889.40 and 222,030.80 is: 333,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,000.40 : 532,889.40 = 222,030.80 : x
  2. Step 2: Convert to fraction form
    355,000.40/532,889.40 = 222,030.80/x
  3. Step 3: Cross multiply
    355,000.40x = 532,889.40 × 222,030.80
  4. Step 4: Simplify right side
    355,000.40x = 118,317,859,793.52
  5. Step 5: Solve for x
    x = 118,317,859,793.52/355,000.40
  6. Step 6: Final answer
    x = 333,289.37

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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.