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Finding the Fourth Proportional to 192,038.40, 288,403.20 and 185,817.60

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Solution

The fourth proportional to 192,038.40, 288,403.20 and 185,817.60 is: 279,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,038.40 : 288,403.20 = 185,817.60 : x
  2. Step 2: Convert to fraction form
    192,038.40/288,403.20 = 185,817.60/x
  3. Step 3: Cross multiply
    192,038.40x = 288,403.20 × 185,817.60
  4. Step 4: Simplify right side
    192,038.40x = 53,590,390,456.32
  5. Step 5: Solve for x
    x = 53,590,390,456.32/192,038.40
  6. Step 6: Final answer
    x = 279,060.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.