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Finding the Fourth Proportional to 171,007.48, 256,558.20 and 71,214.40

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Solution

The fourth proportional to 171,007.48, 256,558.20 and 71,214.40 is: 106,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,007.48 : 256,558.20 = 71,214.40 : x
  2. Step 2: Convert to fraction form
    171,007.48/256,558.20 = 71,214.40/x
  3. Step 3: Cross multiply
    171,007.48x = 256,558.20 × 71,214.40
  4. Step 4: Simplify right side
    171,007.48x = 18,270,638,278.08
  5. Step 5: Solve for x
    x = 18,270,638,278.08/171,007.48
  6. Step 6: Final answer
    x = 106,841.16

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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.