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Finding the Fourth Proportional to 303,683.90, 455,130.73 and 123,559.39

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Solution

The fourth proportional to 303,683.90, 455,130.73 and 123,559.39 is: 185,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,683.90 : 455,130.73 = 123,559.39 : x
  2. Step 2: Convert to fraction form
    303,683.90/455,130.73 = 123,559.39/x
  3. Step 3: Cross multiply
    303,683.90x = 455,130.73 × 123,559.39
  4. Step 4: Simplify right side
    303,683.90x = 56,235,676,092.42
  5. Step 5: Solve for x
    x = 56,235,676,092.42/303,683.90
  6. Step 6: Final answer
    x = 185,178.33

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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.