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Finding the Fourth Proportional to 171,851.40, 257,258.70 and 151,115.40

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Solution

The fourth proportional to 171,851.40, 257,258.70 and 151,115.40 is: 226,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,851.40 : 257,258.70 = 151,115.40 : x
  2. Step 2: Convert to fraction form
    171,851.40/257,258.70 = 151,115.40/x
  3. Step 3: Cross multiply
    171,851.40x = 257,258.70 × 151,115.40
  4. Step 4: Simplify right side
    171,851.40x = 38,875,751,353.98
  5. Step 5: Solve for x
    x = 38,875,751,353.98/171,851.40
  6. Step 6: Final answer
    x = 226,217.25

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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.