Home / 343,430.46-515,342.25-268,340.22

Finding the Fourth Proportional to 343,430.46, 515,342.25 and 268,340.22

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Solution

The fourth proportional to 343,430.46, 515,342.25 and 268,340.22 is: 402,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,430.46 : 515,342.25 = 268,340.22 : x
  2. Step 2: Convert to fraction form
    343,430.46/515,342.25 = 268,340.22/x
  3. Step 3: Cross multiply
    343,430.46x = 515,342.25 × 268,340.22
  4. Step 4: Simplify right side
    343,430.46x = 138,287,052,740.30
  5. Step 5: Solve for x
    x = 138,287,052,740.30/343,430.46
  6. Step 6: Final answer
    x = 402,663.91

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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.