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Finding the Fourth Proportional to 350,233.80, 525,350.70 and 208,516.20

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Solution

The fourth proportional to 350,233.80, 525,350.70 and 208,516.20 is: 312,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,233.80 : 525,350.70 = 208,516.20 : x
  2. Step 2: Convert to fraction form
    350,233.80/525,350.70 = 208,516.20/x
  3. Step 3: Cross multiply
    350,233.80x = 525,350.70 × 208,516.20
  4. Step 4: Simplify right side
    350,233.80x = 109,544,131,631.34
  5. Step 5: Solve for x
    x = 109,544,131,631.34/350,233.80
  6. Step 6: Final answer
    x = 312,774.30

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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.