Home / 343,748.07-515,636.09-163,740.96

Finding the Fourth Proportional to 343,748.07, 515,636.09 and 163,740.96

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Solution

The fourth proportional to 343,748.07, 515,636.09 and 163,740.96 is: 245,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,748.07 : 515,636.09 = 163,740.96 : x
  2. Step 2: Convert to fraction form
    343,748.07/515,636.09 = 163,740.96/x
  3. Step 3: Cross multiply
    343,748.07x = 515,636.09 × 163,740.96
  4. Step 4: Simplify right side
    343,748.07x = 84,430,747,568.54
  5. Step 5: Solve for x
    x = 84,430,747,568.54/343,748.07
  6. Step 6: Final answer
    x = 245,618.10

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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.