Home / 259,518.80-389,278.20-93,323.60

Finding the Fourth Proportional to 259,518.80, 389,278.20 and 93,323.60

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Solution

The fourth proportional to 259,518.80, 389,278.20 and 93,323.60 is: 139,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,518.80 : 389,278.20 = 93,323.60 : x
  2. Step 2: Convert to fraction form
    259,518.80/389,278.20 = 93,323.60/x
  3. Step 3: Cross multiply
    259,518.80x = 389,278.20 × 93,323.60
  4. Step 4: Simplify right side
    259,518.80x = 36,328,843,025.52
  5. Step 5: Solve for x
    x = 36,328,843,025.52/259,518.80
  6. Step 6: Final answer
    x = 139,985.40

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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.