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Finding the Fourth Proportional to 192,321.55, 288,420.76 and 64,210.33

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Solution

The fourth proportional to 192,321.55, 288,420.76 and 64,210.33 is: 96,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,321.55 : 288,420.76 = 64,210.33 : x
  2. Step 2: Convert to fraction form
    192,321.55/288,420.76 = 64,210.33/x
  3. Step 3: Cross multiply
    192,321.55x = 288,420.76 × 64,210.33
  4. Step 4: Simplify right side
    192,321.55x = 18,519,592,178.45
  5. Step 5: Solve for x
    x = 18,519,592,178.45/192,321.55
  6. Step 6: Final answer
    x = 96,294.94

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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.