Home / 228,674.40-315,570-131,877.84

Finding the Fourth Proportional to 228,674.40, 315,570 and 131,877.84

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Solution

The fourth proportional to 228,674.40, 315,570 and 131,877.84 is: 181,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,674.40 : 315,570 = 131,877.84 : x
  2. Step 2: Convert to fraction form
    228,674.40/315,570 = 131,877.84/x
  3. Step 3: Cross multiply
    228,674.40x = 315,570 × 131,877.84
  4. Step 4: Simplify right side
    228,674.40x = 41,616,689,968.80
  5. Step 5: Solve for x
    x = 41,616,689,968.80/228,674.40
  6. Step 6: Final answer
    x = 181,991.03

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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.