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Finding the Fourth Proportional to 350,083.20, 525,124.80 and 209,769.60

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Solution

The fourth proportional to 350,083.20, 525,124.80 and 209,769.60 is: 314,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,083.20 : 525,124.80 = 209,769.60 : x
  2. Step 2: Convert to fraction form
    350,083.20/525,124.80 = 209,769.60/x
  3. Step 3: Cross multiply
    350,083.20x = 525,124.80 × 209,769.60
  4. Step 4: Simplify right side
    350,083.20x = 110,155,219,246.08
  5. Step 5: Solve for x
    x = 110,155,219,246.08/350,083.20
  6. Step 6: Final answer
    x = 314,654.40

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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.