Home / 338,940.23-508,413.24-86,220.93

Finding the Fourth Proportional to 338,940.23, 508,413.24 and 86,220.93

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Solution

The fourth proportional to 338,940.23, 508,413.24 and 86,220.93 is: 129,332.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,940.23 : 508,413.24 = 86,220.93 : x
  2. Step 2: Convert to fraction form
    338,940.23/508,413.24 = 86,220.93/x
  3. Step 3: Cross multiply
    338,940.23x = 508,413.24 × 86,220.93
  4. Step 4: Simplify right side
    338,940.23x = 43,835,864,283.66
  5. Step 5: Solve for x
    x = 43,835,864,283.66/338,940.23
  6. Step 6: Final answer
    x = 129,332.14

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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.