Home / 380,665.08-571,011.60-127,954.20

Finding the Fourth Proportional to 380,665.08, 571,011.60 and 127,954.20

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Solution

The fourth proportional to 380,665.08, 571,011.60 and 127,954.20 is: 191,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,665.08 : 571,011.60 = 127,954.20 : x
  2. Step 2: Convert to fraction form
    380,665.08/571,011.60 = 127,954.20/x
  3. Step 3: Cross multiply
    380,665.08x = 571,011.60 × 127,954.20
  4. Step 4: Simplify right side
    380,665.08x = 73,063,332,468.72
  5. Step 5: Solve for x
    x = 73,063,332,468.72/380,665.08
  6. Step 6: Final answer
    x = 191,936.00

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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.