Home / 314,979.03-434,720.93-187,728.44

Finding the Fourth Proportional to 314,979.03, 434,720.93 and 187,728.44

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Solution

The fourth proportional to 314,979.03, 434,720.93 and 187,728.44 is: 259,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,979.03 : 434,720.93 = 187,728.44 : x
  2. Step 2: Convert to fraction form
    314,979.03/434,720.93 = 187,728.44/x
  3. Step 3: Cross multiply
    314,979.03x = 434,720.93 × 187,728.44
  4. Step 4: Simplify right side
    314,979.03x = 81,609,478,912.00
  5. Step 5: Solve for x
    x = 81,609,478,912.00/314,979.03
  6. Step 6: Final answer
    x = 259,094.96

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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.