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Finding the Fourth Proportional to 265,590.53, 398,268.58 and 76,007.73

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Solution

The fourth proportional to 265,590.53, 398,268.58 and 76,007.73 is: 113,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,590.53 : 398,268.58 = 76,007.73 : x
  2. Step 2: Convert to fraction form
    265,590.53/398,268.58 = 76,007.73/x
  3. Step 3: Cross multiply
    265,590.53x = 398,268.58 × 76,007.73
  4. Step 4: Simplify right side
    265,590.53x = 30,271,489,341.80
  5. Step 5: Solve for x
    x = 30,271,489,341.80/265,590.53
  6. Step 6: Final answer
    x = 113,978.05

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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.