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Finding the Fourth Proportional to 350,458.80, 525,688.20 and 200,641.20

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Solution

The fourth proportional to 350,458.80, 525,688.20 and 200,641.20 is: 300,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,458.80 : 525,688.20 = 200,641.20 : x
  2. Step 2: Convert to fraction form
    350,458.80/525,688.20 = 200,641.20/x
  3. Step 3: Cross multiply
    350,458.80x = 525,688.20 × 200,641.20
  4. Step 4: Simplify right side
    350,458.80x = 105,474,711,273.84
  5. Step 5: Solve for x
    x = 105,474,711,273.84/350,458.80
  6. Step 6: Final answer
    x = 300,961.80

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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.