Home / 245,822.15-339,233.58-138,392.39

Finding the Fourth Proportional to 245,822.15, 339,233.58 and 138,392.39

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Solution

The fourth proportional to 245,822.15, 339,233.58 and 138,392.39 is: 190,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,822.15 : 339,233.58 = 138,392.39 : x
  2. Step 2: Convert to fraction form
    245,822.15/339,233.58 = 138,392.39/x
  3. Step 3: Cross multiply
    245,822.15x = 339,233.58 × 138,392.39
  4. Step 4: Simplify right side
    245,822.15x = 46,947,345,904.46
  5. Step 5: Solve for x
    x = 46,947,345,904.46/245,822.15
  6. Step 6: Final answer
    x = 190,980.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.