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Finding the Fourth Proportional to 353,882, 531,051.37 and 129,223.63

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Solution

The fourth proportional to 353,882, 531,051.37 and 129,223.63 is: 193,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,882 : 531,051.37 = 129,223.63 : x
  2. Step 2: Convert to fraction form
    353,882/531,051.37 = 129,223.63/x
  3. Step 3: Cross multiply
    353,882x = 531,051.37 × 129,223.63
  4. Step 4: Simplify right side
    353,882x = 68,624,385,747.87
  5. Step 5: Solve for x
    x = 68,624,385,747.87/353,882
  6. Step 6: Final answer
    x = 193,918.84

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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.