Home / 282,914.26-390,413.88-155,589.86

Finding the Fourth Proportional to 282,914.26, 390,413.88 and 155,589.86

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Solution

The fourth proportional to 282,914.26, 390,413.88 and 155,589.86 is: 214,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,914.26 : 390,413.88 = 155,589.86 : x
  2. Step 2: Convert to fraction form
    282,914.26/390,413.88 = 155,589.86/x
  3. Step 3: Cross multiply
    282,914.26x = 390,413.88 × 155,589.86
  4. Step 4: Simplify right side
    282,914.26x = 60,744,440,931.26
  5. Step 5: Solve for x
    x = 60,744,440,931.26/282,914.26
  6. Step 6: Final answer
    x = 214,709.72

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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.