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Finding the Fourth Proportional to 263,632.12, 395,515.62 and 76,643.62

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Solution

The fourth proportional to 263,632.12, 395,515.62 and 76,643.62 is: 114,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,632.12 : 395,515.62 = 76,643.62 : x
  2. Step 2: Convert to fraction form
    263,632.12/395,515.62 = 76,643.62/x
  3. Step 3: Cross multiply
    263,632.12x = 395,515.62 × 76,643.62
  4. Step 4: Simplify right side
    263,632.12x = 30,313,748,883.34
  5. Step 5: Solve for x
    x = 30,313,748,883.34/263,632.12
  6. Step 6: Final answer
    x = 114,985.04

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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.