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Finding the Fourth Proportional to 355,581.28, 490,470.96 and 228,054.88

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Solution

The fourth proportional to 355,581.28, 490,470.96 and 228,054.88 is: 314,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,581.28 : 490,470.96 = 228,054.88 : x
  2. Step 2: Convert to fraction form
    355,581.28/490,470.96 = 228,054.88/x
  3. Step 3: Cross multiply
    355,581.28x = 490,470.96 × 228,054.88
  4. Step 4: Simplify right side
    355,581.28x = 111,854,295,926.29
  5. Step 5: Solve for x
    x = 111,854,295,926.29/355,581.28
  6. Step 6: Final answer
    x = 314,567.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.