Home / 343,642.24-515,040.32-163,822.40

Finding the Fourth Proportional to 343,642.24, 515,040.32 and 163,822.40

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Solution

The fourth proportional to 343,642.24, 515,040.32 and 163,822.40 is: 245,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,642.24 : 515,040.32 = 163,822.40 : x
  2. Step 2: Convert to fraction form
    343,642.24/515,040.32 = 163,822.40/x
  3. Step 3: Cross multiply
    343,642.24x = 515,040.32 × 163,822.40
  4. Step 4: Simplify right side
    343,642.24x = 84,375,141,319.17
  5. Step 5: Solve for x
    x = 84,375,141,319.17/343,642.24
  6. Step 6: Final answer
    x = 245,531.93

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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.