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Finding the Fourth Proportional to 398,596.75, 550,085.39 and 228,841.81

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Solution

The fourth proportional to 398,596.75, 550,085.39 and 228,841.81 is: 315,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,596.75 : 550,085.39 = 228,841.81 : x
  2. Step 2: Convert to fraction form
    398,596.75/550,085.39 = 228,841.81/x
  3. Step 3: Cross multiply
    398,596.75x = 550,085.39 × 228,841.81
  4. Step 4: Simplify right side
    398,596.75x = 125,882,536,302.16
  5. Step 5: Solve for x
    x = 125,882,536,302.16/398,596.75
  6. Step 6: Final answer
    x = 315,814.26

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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.