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Finding the Fourth Proportional to 260,512.02, 390,760.73 and 83,029.68

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Solution

The fourth proportional to 260,512.02, 390,760.73 and 83,029.68 is: 124,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,512.02 : 390,760.73 = 83,029.68 : x
  2. Step 2: Convert to fraction form
    260,512.02/390,760.73 = 83,029.68/x
  3. Step 3: Cross multiply
    260,512.02x = 390,760.73 × 83,029.68
  4. Step 4: Simplify right side
    260,512.02x = 32,444,736,622.24
  5. Step 5: Solve for x
    x = 32,444,736,622.24/260,512.02
  6. Step 6: Final answer
    x = 124,542.19

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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.