Home / 343,929.40-515,894.10-107,271.70

Finding the Fourth Proportional to 343,929.40, 515,894.10 and 107,271.70

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Solution

The fourth proportional to 343,929.40, 515,894.10 and 107,271.70 is: 160,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,929.40 : 515,894.10 = 107,271.70 : x
  2. Step 2: Convert to fraction form
    343,929.40/515,894.10 = 107,271.70/x
  3. Step 3: Cross multiply
    343,929.40x = 515,894.10 × 107,271.70
  4. Step 4: Simplify right side
    343,929.40x = 55,340,837,126.97
  5. Step 5: Solve for x
    x = 55,340,837,126.97/343,929.40
  6. Step 6: Final answer
    x = 160,907.55

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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.