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Finding the Fourth Proportional to 260,745.84, 390,926.88 and 83,150.64

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Solution

The fourth proportional to 260,745.84, 390,926.88 and 83,150.64 is: 124,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,745.84 : 390,926.88 = 83,150.64 : x
  2. Step 2: Convert to fraction form
    260,745.84/390,926.88 = 83,150.64/x
  3. Step 3: Cross multiply
    260,745.84x = 390,926.88 × 83,150.64
  4. Step 4: Simplify right side
    260,745.84x = 32,505,820,265.20
  5. Step 5: Solve for x
    x = 32,505,820,265.20/260,745.84
  6. Step 6: Final answer
    x = 124,664.77

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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.