Home / 343,389.23-515,013.70-130,083.60

Finding the Fourth Proportional to 343,389.23, 515,013.70 and 130,083.60

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Solution

The fourth proportional to 343,389.23, 515,013.70 and 130,083.60 is: 195,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,389.23 : 515,013.70 = 130,083.60 : x
  2. Step 2: Convert to fraction form
    343,389.23/515,013.70 = 130,083.60/x
  3. Step 3: Cross multiply
    343,389.23x = 515,013.70 × 130,083.60
  4. Step 4: Simplify right side
    343,389.23x = 66,994,836,145.32
  5. Step 5: Solve for x
    x = 66,994,836,145.32/343,389.23
  6. Step 6: Final answer
    x = 195,098.83

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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.