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Finding the Fourth Proportional to 260,102.67, 390,179.99 and 70,566.16

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Solution

The fourth proportional to 260,102.67, 390,179.99 and 70,566.16 is: 105,856.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,102.67 : 390,179.99 = 70,566.16 : x
  2. Step 2: Convert to fraction form
    260,102.67/390,179.99 = 70,566.16/x
  3. Step 3: Cross multiply
    260,102.67x = 390,179.99 × 70,566.16
  4. Step 4: Simplify right side
    260,102.67x = 27,533,504,236.14
  5. Step 5: Solve for x
    x = 27,533,504,236.14/260,102.67
  6. Step 6: Final answer
    x = 105,856.29

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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.