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Finding the Fourth Proportional to 350,655.20, 525,982.80 and 323,621.60

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Solution

The fourth proportional to 350,655.20, 525,982.80 and 323,621.60 is: 485,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,655.20 : 525,982.80 = 323,621.60 : x
  2. Step 2: Convert to fraction form
    350,655.20/525,982.80 = 323,621.60/x
  3. Step 3: Cross multiply
    350,655.20x = 525,982.80 × 323,621.60
  4. Step 4: Simplify right side
    350,655.20x = 170,219,395,308.48
  5. Step 5: Solve for x
    x = 170,219,395,308.48/350,655.20
  6. Step 6: Final answer
    x = 485,432.40

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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.