Home / 343,327.20-515,336.40-165,976.80

Finding the Fourth Proportional to 343,327.20, 515,336.40 and 165,976.80

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Solution

The fourth proportional to 343,327.20, 515,336.40 and 165,976.80 is: 249,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,327.20 : 515,336.40 = 165,976.80 : x
  2. Step 2: Convert to fraction form
    343,327.20/515,336.40 = 165,976.80/x
  3. Step 3: Cross multiply
    343,327.20x = 515,336.40 × 165,976.80
  4. Step 4: Simplify right side
    343,327.20x = 85,533,886,595.52
  5. Step 5: Solve for x
    x = 85,533,886,595.52/343,327.20
  6. Step 6: Final answer
    x = 249,132.28

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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.