Home / 274,835.40-379,283.76-153,977.70

Finding the Fourth Proportional to 274,835.40, 379,283.76 and 153,977.70

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Solution

The fourth proportional to 274,835.40, 379,283.76 and 153,977.70 is: 212,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,835.40 : 379,283.76 = 153,977.70 : x
  2. Step 2: Convert to fraction form
    274,835.40/379,283.76 = 153,977.70/x
  3. Step 3: Cross multiply
    274,835.40x = 379,283.76 × 153,977.70
  4. Step 4: Simplify right side
    274,835.40x = 58,401,241,012.15
  5. Step 5: Solve for x
    x = 58,401,241,012.15/274,835.40
  6. Step 6: Final answer
    x = 212,495.34

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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.