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Finding the Fourth Proportional to 350,015.20, 525,022.80 and 339,647.20

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Solution

The fourth proportional to 350,015.20, 525,022.80 and 339,647.20 is: 509,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,015.20 : 525,022.80 = 339,647.20 : x
  2. Step 2: Convert to fraction form
    350,015.20/525,022.80 = 339,647.20/x
  3. Step 3: Cross multiply
    350,015.20x = 525,022.80 × 339,647.20
  4. Step 4: Simplify right side
    350,015.20x = 178,322,523,956.16
  5. Step 5: Solve for x
    x = 178,322,523,956.16/350,015.20
  6. Step 6: Final answer
    x = 509,470.80

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1.5x scale

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.