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Finding the Fourth Proportional to 350,986.60, 525,788.70 and 210,327.40

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Solution

The fourth proportional to 350,986.60, 525,788.70 and 210,327.40 is: 315,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,986.60 : 525,788.70 = 210,327.40 : x
  2. Step 2: Convert to fraction form
    350,986.60/525,788.70 = 210,327.40/x
  3. Step 3: Cross multiply
    350,986.60x = 525,788.70 × 210,327.40
  4. Step 4: Simplify right side
    350,986.60x = 110,587,770,220.38
  5. Step 5: Solve for x
    x = 110,587,770,220.38/350,986.60
  6. Step 6: Final answer
    x = 315,076.90

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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.