Home / 432,865.04-649,367.40-133,345.60

Finding the Fourth Proportional to 432,865.04, 649,367.40 and 133,345.60

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Solution

The fourth proportional to 432,865.04, 649,367.40 and 133,345.60 is: 200,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,865.04 : 649,367.40 = 133,345.60 : x
  2. Step 2: Convert to fraction form
    432,865.04/649,367.40 = 133,345.60/x
  3. Step 3: Cross multiply
    432,865.04x = 649,367.40 × 133,345.60
  4. Step 4: Simplify right side
    432,865.04x = 86,590,285,573.44
  5. Step 5: Solve for x
    x = 86,590,285,573.44/432,865.04
  6. Step 6: Final answer
    x = 200,039.91

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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.