Home / 343,749.57-515,638.34-163,742.46

Finding the Fourth Proportional to 343,749.57, 515,638.34 and 163,742.46

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Solution

The fourth proportional to 343,749.57, 515,638.34 and 163,742.46 is: 245,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,749.57 : 515,638.34 = 163,742.46 : x
  2. Step 2: Convert to fraction form
    343,749.57/515,638.34 = 163,742.46/x
  3. Step 3: Cross multiply
    343,749.57x = 515,638.34 × 163,742.46
  4. Step 4: Simplify right side
    343,749.57x = 84,431,889,443.20
  5. Step 5: Solve for x
    x = 84,431,889,443.20/343,749.57
  6. Step 6: Final answer
    x = 245,620.35

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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.