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Finding the Fourth Proportional to 216,493.82, 324,657.68 and 74,312.60

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Solution

The fourth proportional to 216,493.82, 324,657.68 and 74,312.60 is: 111,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,493.82 : 324,657.68 = 74,312.60 : x
  2. Step 2: Convert to fraction form
    216,493.82/324,657.68 = 74,312.60/x
  3. Step 3: Cross multiply
    216,493.82x = 324,657.68 × 74,312.60
  4. Step 4: Simplify right side
    216,493.82x = 24,126,154,315.92
  5. Step 5: Solve for x
    x = 24,126,154,315.92/216,493.82
  6. Step 6: Final answer
    x = 111,440.39

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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.