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Finding the Fourth Proportional to 373,683, 515,693.49 and 203,928.06

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Solution

The fourth proportional to 373,683, 515,693.49 and 203,928.06 is: 281,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,683 : 515,693.49 = 203,928.06 : x
  2. Step 2: Convert to fraction form
    373,683/515,693.49 = 203,928.06/x
  3. Step 3: Cross multiply
    373,683x = 515,693.49 × 203,928.06
  4. Step 4: Simplify right side
    373,683x = 105,164,372,970.33
  5. Step 5: Solve for x
    x = 105,164,372,970.33/373,683
  6. Step 6: Final answer
    x = 281,426.70

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1.5x scale

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.