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Finding the Fourth Proportional to 260,499.74, 390,745.35 and 83,004.35

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Solution

The fourth proportional to 260,499.74, 390,745.35 and 83,004.35 is: 124,505.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,499.74 : 390,745.35 = 83,004.35 : x
  2. Step 2: Convert to fraction form
    260,499.74/390,745.35 = 83,004.35/x
  3. Step 3: Cross multiply
    260,499.74x = 390,745.35 × 83,004.35
  4. Step 4: Simplify right side
    260,499.74x = 32,433,561,838.55
  5. Step 5: Solve for x
    x = 32,433,561,838.55/260,499.74
  6. Step 6: Final answer
    x = 124,505.16

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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.