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Finding the Fourth Proportional to 171,224.26, 256,488.23 and 139,746.50

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Solution

The fourth proportional to 171,224.26, 256,488.23 and 139,746.50 is: 209,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,224.26 : 256,488.23 = 139,746.50 : x
  2. Step 2: Convert to fraction form
    171,224.26/256,488.23 = 139,746.50/x
  3. Step 3: Cross multiply
    171,224.26x = 256,488.23 × 139,746.50
  4. Step 4: Simplify right side
    171,224.26x = 35,843,332,433.70
  5. Step 5: Solve for x
    x = 35,843,332,433.70/171,224.26
  6. Step 6: Final answer
    x = 209,335.60

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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.