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Finding the Fourth Proportional to 171,225.26, 256,489.73 and 139,747.50

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Solution

The fourth proportional to 171,225.26, 256,489.73 and 139,747.50 is: 209,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,225.26 : 256,489.73 = 139,747.50 : x
  2. Step 2: Convert to fraction form
    171,225.26/256,489.73 = 139,747.50/x
  3. Step 3: Cross multiply
    171,225.26x = 256,489.73 × 139,747.50
  4. Step 4: Simplify right side
    171,225.26x = 35,843,798,543.18
  5. Step 5: Solve for x
    x = 35,843,798,543.18/171,225.26
  6. Step 6: Final answer
    x = 209,337.10

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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.