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Finding the Fourth Proportional to 315,683.40, 473,006.70 and 262,806.60

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Solution

The fourth proportional to 315,683.40, 473,006.70 and 262,806.60 is: 393,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,683.40 : 473,006.70 = 262,806.60 : x
  2. Step 2: Convert to fraction form
    315,683.40/473,006.70 = 262,806.60/x
  3. Step 3: Cross multiply
    315,683.40x = 473,006.70 × 262,806.60
  4. Step 4: Simplify right side
    315,683.40x = 124,309,282,604.22
  5. Step 5: Solve for x
    x = 124,309,282,604.22/315,683.40
  6. Step 6: Final answer
    x = 393,778.33

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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.