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Finding the Fourth Proportional to 216,124.32, 324,064.88 and 148,735.52

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Solution

The fourth proportional to 216,124.32, 324,064.88 and 148,735.52 is: 223,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,124.32 : 324,064.88 = 148,735.52 : x
  2. Step 2: Convert to fraction form
    216,124.32/324,064.88 = 148,735.52/x
  3. Step 3: Cross multiply
    216,124.32x = 324,064.88 × 148,735.52
  4. Step 4: Simplify right side
    216,124.32x = 48,199,958,440.54
  5. Step 5: Solve for x
    x = 48,199,958,440.54/216,124.32
  6. Step 6: Final answer
    x = 223,019.60

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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.