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Finding the Fourth Proportional to 350,076.40, 525,748.20 and 306,530.80

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Solution

The fourth proportional to 350,076.40, 525,748.20 and 306,530.80 is: 460,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,076.40 : 525,748.20 = 306,530.80 : x
  2. Step 2: Convert to fraction form
    350,076.40/525,748.20 = 306,530.80/x
  3. Step 3: Cross multiply
    350,076.40x = 525,748.20 × 306,530.80
  4. Step 4: Simplify right side
    350,076.40x = 161,158,016,344.56
  5. Step 5: Solve for x
    x = 161,158,016,344.56/350,076.40
  6. Step 6: Final answer
    x = 460,350.99

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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.