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Finding the Fourth Proportional to 260,041.78, 358,850.72 and 145,321.32

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Solution

The fourth proportional to 260,041.78, 358,850.72 and 145,321.32 is: 200,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,041.78 : 358,850.72 = 145,321.32 : x
  2. Step 2: Convert to fraction form
    260,041.78/358,850.72 = 145,321.32/x
  3. Step 3: Cross multiply
    260,041.78x = 358,850.72 × 145,321.32
  4. Step 4: Simplify right side
    260,041.78x = 52,148,660,313.35
  5. Step 5: Solve for x
    x = 52,148,660,313.35/260,041.78
  6. Step 6: Final answer
    x = 200,539.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.