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Finding the Fourth Proportional to 323,805.08, 485,413.58 and 113,328.20

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Solution

The fourth proportional to 323,805.08, 485,413.58 and 113,328.20 is: 169,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,805.08 : 485,413.58 = 113,328.20 : x
  2. Step 2: Convert to fraction form
    323,805.08/485,413.58 = 113,328.20/x
  3. Step 3: Cross multiply
    323,805.08x = 485,413.58 × 113,328.20
  4. Step 4: Simplify right side
    323,805.08x = 55,011,047,276.96
  5. Step 5: Solve for x
    x = 55,011,047,276.96/323,805.08
  6. Step 6: Final answer
    x = 169,889.39

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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.