Home / 427,364.14-641,079.92-143,056.35

Finding the Fourth Proportional to 427,364.14, 641,079.92 and 143,056.35

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Solution

The fourth proportional to 427,364.14, 641,079.92 and 143,056.35 is: 214,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,364.14 : 641,079.92 = 143,056.35 : x
  2. Step 2: Convert to fraction form
    427,364.14/641,079.92 = 143,056.35/x
  3. Step 3: Cross multiply
    427,364.14x = 641,079.92 × 143,056.35
  4. Step 4: Simplify right side
    427,364.14x = 91,710,553,413.49
  5. Step 5: Solve for x
    x = 91,710,553,413.49/427,364.14
  6. Step 6: Final answer
    x = 214,595.81

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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.