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Finding the Fourth Proportional to 208,389.35, 312,463.34 and 183,479.42

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Solution

The fourth proportional to 208,389.35, 312,463.34 and 183,479.42 is: 275,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,389.35 : 312,463.34 = 183,479.42 : x
  2. Step 2: Convert to fraction form
    208,389.35/312,463.34 = 183,479.42/x
  3. Step 3: Cross multiply
    208,389.35x = 312,463.34 × 183,479.42
  4. Step 4: Simplify right side
    208,389.35x = 57,330,591,477.07
  5. Step 5: Solve for x
    x = 57,330,591,477.07/208,389.35
  6. Step 6: Final answer
    x = 275,112.87

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1.5x scale

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.