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Finding the Fourth Proportional to 326,350.69, 489,529.41 and 98,648.20

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Solution

The fourth proportional to 326,350.69, 489,529.41 and 98,648.20 is: 147,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,350.69 : 489,529.41 = 98,648.20 : x
  2. Step 2: Convert to fraction form
    326,350.69/489,529.41 = 98,648.20/x
  3. Step 3: Cross multiply
    326,350.69x = 489,529.41 × 98,648.20
  4. Step 4: Simplify right side
    326,350.69x = 48,291,195,143.56
  5. Step 5: Solve for x
    x = 48,291,195,143.56/326,350.69
  6. Step 6: Final answer
    x = 147,973.32

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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.