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Finding the Fourth Proportional to 314,975.93, 472,660.73 and 127,987.43

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Solution

The fourth proportional to 314,975.93, 472,660.73 and 127,987.43 is: 192,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,975.93 : 472,660.73 = 127,987.43 : x
  2. Step 2: Convert to fraction form
    314,975.93/472,660.73 = 127,987.43/x
  3. Step 3: Cross multiply
    314,975.93x = 472,660.73 × 127,987.43
  4. Step 4: Simplify right side
    314,975.93x = 60,494,632,094.62
  5. Step 5: Solve for x
    x = 60,494,632,094.62/314,975.93
  6. Step 6: Final answer
    x = 192,061.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.