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Finding the Fourth Proportional to 326,230.10, 489,345.15 and 112,997.60

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Solution

The fourth proportional to 326,230.10, 489,345.15 and 112,997.60 is: 169,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,230.10 : 489,345.15 = 112,997.60 : x
  2. Step 2: Convert to fraction form
    326,230.10/489,345.15 = 112,997.60/x
  3. Step 3: Cross multiply
    326,230.10x = 489,345.15 × 112,997.60
  4. Step 4: Simplify right side
    326,230.10x = 55,294,827,521.64
  5. Step 5: Solve for x
    x = 55,294,827,521.64/326,230.10
  6. Step 6: Final answer
    x = 169,496.40

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Similar ratio
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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.