Home / 432,833.10-649,319.40-133,313.58

Finding the Fourth Proportional to 432,833.10, 649,319.40 and 133,313.58

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Solution

The fourth proportional to 432,833.10, 649,319.40 and 133,313.58 is: 199,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,833.10 : 649,319.40 = 133,313.58 : x
  2. Step 2: Convert to fraction form
    432,833.10/649,319.40 = 133,313.58/x
  3. Step 3: Cross multiply
    432,833.10x = 649,319.40 × 133,313.58
  4. Step 4: Simplify right side
    432,833.10x = 86,563,093,777.45
  5. Step 5: Solve for x
    x = 86,563,093,777.45/432,833.10
  6. Step 6: Final answer
    x = 199,991.85

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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.