Home / 192,331.08-288,435-64,219.86

Finding the Fourth Proportional to 192,331.08, 288,435 and 64,219.86

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Solution

The fourth proportional to 192,331.08, 288,435 and 64,219.86 is: 96,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,331.08 : 288,435 = 64,219.86 : x
  2. Step 2: Convert to fraction form
    192,331.08/288,435 = 64,219.86/x
  3. Step 3: Cross multiply
    192,331.08x = 288,435 × 64,219.86
  4. Step 4: Simplify right side
    192,331.08x = 18,523,255,319.10
  5. Step 5: Solve for x
    x = 18,523,255,319.10/192,331.08
  6. Step 6: Final answer
    x = 96,309.21

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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.