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Finding the Fourth Proportional to 216,166.20, 324,006.30 and 103,900.20

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Solution

The fourth proportional to 216,166.20, 324,006.30 and 103,900.20 is: 155,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,166.20 : 324,006.30 = 103,900.20 : x
  2. Step 2: Convert to fraction form
    216,166.20/324,006.30 = 103,900.20/x
  3. Step 3: Cross multiply
    216,166.20x = 324,006.30 × 103,900.20
  4. Step 4: Simplify right side
    216,166.20x = 33,664,319,371.26
  5. Step 5: Solve for x
    x = 33,664,319,371.26/216,166.20
  6. Step 6: Final answer
    x = 155,733.50

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1.5x scale

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.