Home / 279,485.85-385,677.77-152,161.17

Finding the Fourth Proportional to 279,485.85, 385,677.77 and 152,161.17

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Solution

The fourth proportional to 279,485.85, 385,677.77 and 152,161.17 is: 209,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,485.85 : 385,677.77 = 152,161.17 : x
  2. Step 2: Convert to fraction form
    279,485.85/385,677.77 = 152,161.17/x
  3. Step 3: Cross multiply
    279,485.85x = 385,677.77 × 152,161.17
  4. Step 4: Simplify right side
    279,485.85x = 58,685,179,965.39
  5. Step 5: Solve for x
    x = 58,685,179,965.39/279,485.85
  6. Step 6: Final answer
    x = 209,975.50

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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.