Home / 343,393.44-515,291.04-143,697.12

Finding the Fourth Proportional to 343,393.44, 515,291.04 and 143,697.12

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Solution

The fourth proportional to 343,393.44, 515,291.04 and 143,697.12 is: 215,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,393.44 : 515,291.04 = 143,697.12 : x
  2. Step 2: Convert to fraction form
    343,393.44/515,291.04 = 143,697.12/x
  3. Step 3: Cross multiply
    343,393.44x = 515,291.04 × 143,697.12
  4. Step 4: Simplify right side
    343,393.44x = 74,045,838,409.80
  5. Step 5: Solve for x
    x = 74,045,838,409.80/343,393.44
  6. Step 6: Final answer
    x = 215,629.74

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1.5x scale

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.