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Finding the Fourth Proportional to 435,743.20, 653,485.20 and 169,350.40

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Solution

The fourth proportional to 435,743.20, 653,485.20 and 169,350.40 is: 253,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,743.20 : 653,485.20 = 169,350.40 : x
  2. Step 2: Convert to fraction form
    435,743.20/653,485.20 = 169,350.40/x
  3. Step 3: Cross multiply
    435,743.20x = 653,485.20 × 169,350.40
  4. Step 4: Simplify right side
    435,743.20x = 110,667,980,014.08
  5. Step 5: Solve for x
    x = 110,667,980,014.08/435,743.20
  6. Step 6: Final answer
    x = 253,975.23

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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.