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Finding the Fourth Proportional to 151,467.40, 227,201.10 and 128,139.40

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Solution

The fourth proportional to 151,467.40, 227,201.10 and 128,139.40 is: 192,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,467.40 : 227,201.10 = 128,139.40 : x
  2. Step 2: Convert to fraction form
    151,467.40/227,201.10 = 128,139.40/x
  3. Step 3: Cross multiply
    151,467.40x = 227,201.10 × 128,139.40
  4. Step 4: Simplify right side
    151,467.40x = 29,113,412,633.34
  5. Step 5: Solve for x
    x = 29,113,412,633.34/151,467.40
  6. Step 6: Final answer
    x = 192,209.10

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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.