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Finding the Fourth Proportional to 353,884, 531,054.37 and 129,225.63

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Solution

The fourth proportional to 353,884, 531,054.37 and 129,225.63 is: 193,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,884 : 531,054.37 = 129,225.63 : x
  2. Step 2: Convert to fraction form
    353,884/531,054.37 = 129,225.63/x
  3. Step 3: Cross multiply
    353,884x = 531,054.37 × 129,225.63
  4. Step 4: Simplify right side
    353,884x = 68,625,835,527.50
  5. Step 5: Solve for x
    x = 68,625,835,527.50/353,884
  6. Step 6: Final answer
    x = 193,921.84

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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.