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Finding the Fourth Proportional to 260,513.37, 390,758.13 and 108,647.73

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Solution

The fourth proportional to 260,513.37, 390,758.13 and 108,647.73 is: 162,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,513.37 : 390,758.13 = 108,647.73 : x
  2. Step 2: Convert to fraction form
    260,513.37/390,758.13 = 108,647.73/x
  3. Step 3: Cross multiply
    260,513.37x = 390,758.13 × 108,647.73
  4. Step 4: Simplify right side
    260,513.37x = 42,454,983,803.54
  5. Step 5: Solve for x
    x = 42,454,983,803.54/260,513.37
  6. Step 6: Final answer
    x = 162,966.62

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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.