Home / 432,923.60-649,487.80-137,435.60

Finding the Fourth Proportional to 432,923.60, 649,487.80 and 137,435.60

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Solution

The fourth proportional to 432,923.60, 649,487.80 and 137,435.60 is: 206,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,923.60 : 649,487.80 = 137,435.60 : x
  2. Step 2: Convert to fraction form
    432,923.60/649,487.80 = 137,435.60/x
  3. Step 3: Cross multiply
    432,923.60x = 649,487.80 × 137,435.60
  4. Step 4: Simplify right side
    432,923.60x = 89,262,745,485.68
  5. Step 5: Solve for x
    x = 89,262,745,485.68/432,923.60
  6. Step 6: Final answer
    x = 206,185.91

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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.