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Finding the Fourth Proportional to 260,360.58, 390,544.11 and 82,866.90

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Solution

The fourth proportional to 260,360.58, 390,544.11 and 82,866.90 is: 124,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,360.58 : 390,544.11 = 82,866.90 : x
  2. Step 2: Convert to fraction form
    260,360.58/390,544.11 = 82,866.90/x
  3. Step 3: Cross multiply
    260,360.58x = 390,544.11 × 82,866.90
  4. Step 4: Simplify right side
    260,360.58x = 32,363,179,708.96
  5. Step 5: Solve for x
    x = 32,363,179,708.96/260,360.58
  6. Step 6: Final answer
    x = 124,301.38

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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.