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Finding the Fourth Proportional to 259,525.80, 389,288.70 and 93,330.60

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Solution

The fourth proportional to 259,525.80, 389,288.70 and 93,330.60 is: 139,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,525.80 : 389,288.70 = 93,330.60 : x
  2. Step 2: Convert to fraction form
    259,525.80/389,288.70 = 93,330.60/x
  3. Step 3: Cross multiply
    259,525.80x = 389,288.70 × 93,330.60
  4. Step 4: Simplify right side
    259,525.80x = 36,332,547,944.22
  5. Step 5: Solve for x
    x = 36,332,547,944.22/259,525.80
  6. Step 6: Final answer
    x = 139,995.90

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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.