Home / 282,193.47-389,413.98-154,871.19

Finding the Fourth Proportional to 282,193.47, 389,413.98 and 154,871.19

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Solution

The fourth proportional to 282,193.47, 389,413.98 and 154,871.19 is: 213,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,193.47 : 389,413.98 = 154,871.19 : x
  2. Step 2: Convert to fraction form
    282,193.47/389,413.98 = 154,871.19/x
  3. Step 3: Cross multiply
    282,193.47x = 389,413.98 × 154,871.19
  4. Step 4: Simplify right side
    282,193.47x = 60,309,006,485.24
  5. Step 5: Solve for x
    x = 60,309,006,485.24/282,193.47
  6. Step 6: Final answer
    x = 213,715.10

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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.