Home / 432,913.80-649,435.20-133,369.32

Finding the Fourth Proportional to 432,913.80, 649,435.20 and 133,369.32

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Solution

The fourth proportional to 432,913.80, 649,435.20 and 133,369.32 is: 200,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,913.80 : 649,435.20 = 133,369.32 : x
  2. Step 2: Convert to fraction form
    432,913.80/649,435.20 = 133,369.32/x
  3. Step 3: Cross multiply
    432,913.80x = 649,435.20 × 133,369.32
  4. Step 4: Simplify right side
    432,913.80x = 86,614,731,008.06
  5. Step 5: Solve for x
    x = 86,614,731,008.06/432,913.80
  6. Step 6: Final answer
    x = 200,073.85

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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.