Home / 353,211.20-529,634.40-103,860.80

Finding the Fourth Proportional to 353,211.20, 529,634.40 and 103,860.80

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Solution

The fourth proportional to 353,211.20, 529,634.40 and 103,860.80 is: 155,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,211.20 : 529,634.40 = 103,860.80 : x
  2. Step 2: Convert to fraction form
    353,211.20/529,634.40 = 103,860.80/x
  3. Step 3: Cross multiply
    353,211.20x = 529,634.40 × 103,860.80
  4. Step 4: Simplify right side
    353,211.20x = 55,008,252,491.52
  5. Step 5: Solve for x
    x = 55,008,252,491.52/353,211.20
  6. Step 6: Final answer
    x = 155,737.57

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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.