Home / 432,917.04-649,436.56-133,421.84

Finding the Fourth Proportional to 432,917.04, 649,436.56 and 133,421.84

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Solution

The fourth proportional to 432,917.04, 649,436.56 and 133,421.84 is: 200,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,917.04 : 649,436.56 = 133,421.84 : x
  2. Step 2: Convert to fraction form
    432,917.04/649,436.56 = 133,421.84/x
  3. Step 3: Cross multiply
    432,917.04x = 649,436.56 × 133,421.84
  4. Step 4: Simplify right side
    432,917.04x = 86,649,020,798.47
  5. Step 5: Solve for x
    x = 86,649,020,798.47/432,917.04
  6. Step 6: Final answer
    x = 200,151.56

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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.