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Finding the Fourth Proportional to 151,473.40, 227,210.10 and 128,145.40

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Solution

The fourth proportional to 151,473.40, 227,210.10 and 128,145.40 is: 192,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,473.40 : 227,210.10 = 128,145.40 : x
  2. Step 2: Convert to fraction form
    151,473.40/227,210.10 = 128,145.40/x
  3. Step 3: Cross multiply
    151,473.40x = 227,210.10 × 128,145.40
  4. Step 4: Simplify right side
    151,473.40x = 29,115,929,148.54
  5. Step 5: Solve for x
    x = 29,115,929,148.54/151,473.40
  6. Step 6: Final answer
    x = 192,218.10

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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.