Home / 314,989.04-434,734.72-187,738.44

Finding the Fourth Proportional to 314,989.04, 434,734.72 and 187,738.44

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Solution

The fourth proportional to 314,989.04, 434,734.72 and 187,738.44 is: 259,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,989.04 : 434,734.72 = 187,738.44 : x
  2. Step 2: Convert to fraction form
    314,989.04/434,734.72 = 187,738.44/x
  3. Step 3: Cross multiply
    314,989.04x = 434,734.72 × 187,738.44
  4. Step 4: Simplify right side
    314,989.04x = 81,616,418,146.64
  5. Step 5: Solve for x
    x = 81,616,418,146.64/314,989.04
  6. Step 6: Final answer
    x = 259,108.76

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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.