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Finding the Fourth Proportional to 326,873.70, 490,383.45 and 127,176.30

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Solution

The fourth proportional to 326,873.70, 490,383.45 and 127,176.30 is: 190,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,873.70 : 490,383.45 = 127,176.30 : x
  2. Step 2: Convert to fraction form
    326,873.70/490,383.45 = 127,176.30/x
  3. Step 3: Cross multiply
    326,873.70x = 490,383.45 × 127,176.30
  4. Step 4: Simplify right side
    326,873.70x = 62,365,152,752.24
  5. Step 5: Solve for x
    x = 62,365,152,752.24/326,873.70
  6. Step 6: Final answer
    x = 190,792.81

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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.