Home / 245,338.74-338,603.32-137,917.62

Finding the Fourth Proportional to 245,338.74, 338,603.32 and 137,917.62

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Solution

The fourth proportional to 245,338.74, 338,603.32 and 137,917.62 is: 190,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,338.74 : 338,603.32 = 137,917.62 : x
  2. Step 2: Convert to fraction form
    245,338.74/338,603.32 = 137,917.62/x
  3. Step 3: Cross multiply
    245,338.74x = 338,603.32 × 137,917.62
  4. Step 4: Simplify right side
    245,338.74x = 46,699,364,018.50
  5. Step 5: Solve for x
    x = 46,699,364,018.50/245,338.74
  6. Step 6: Final answer
    x = 190,346.47

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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.