Home / 272,217.52-408,409.35-139,191.22

Finding the Fourth Proportional to 272,217.52, 408,409.35 and 139,191.22

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Solution

The fourth proportional to 272,217.52, 408,409.35 and 139,191.22 is: 208,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,217.52 : 408,409.35 = 139,191.22 : x
  2. Step 2: Convert to fraction form
    272,217.52/408,409.35 = 139,191.22/x
  3. Step 3: Cross multiply
    272,217.52x = 408,409.35 × 139,191.22
  4. Step 4: Simplify right side
    272,217.52x = 56,846,995,685.91
  5. Step 5: Solve for x
    x = 56,846,995,685.91/272,217.52
  6. Step 6: Final answer
    x = 208,829.31

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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.