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Finding the Fourth Proportional to 326,471.36, 489,711.36 and 186,062.72

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Solution

The fourth proportional to 326,471.36, 489,711.36 and 186,062.72 is: 279,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,471.36 : 489,711.36 = 186,062.72 : x
  2. Step 2: Convert to fraction form
    326,471.36/489,711.36 = 186,062.72/x
  3. Step 3: Cross multiply
    326,471.36x = 489,711.36 × 186,062.72
  4. Step 4: Simplify right side
    326,471.36x = 91,117,027,656.50
  5. Step 5: Solve for x
    x = 91,117,027,656.50/326,471.36
  6. Step 6: Final answer
    x = 279,096.54

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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.