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Finding the Fourth Proportional to 571,072.09, 856,610.06 and 144,607.71

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Solution

The fourth proportional to 571,072.09, 856,610.06 and 144,607.71 is: 216,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,072.09 : 856,610.06 = 144,607.71 : x
  2. Step 2: Convert to fraction form
    571,072.09/856,610.06 = 144,607.71/x
  3. Step 3: Cross multiply
    571,072.09x = 856,610.06 × 144,607.71
  4. Step 4: Simplify right side
    571,072.09x = 123,872,414,133.47
  5. Step 5: Solve for x
    x = 123,872,414,133.47/571,072.09
  6. Step 6: Final answer
    x = 216,912.05

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Similar ratio
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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.