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Finding the Fourth Proportional to 117,374.40, 176,407.20 and 115,300.80

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Solution

The fourth proportional to 117,374.40, 176,407.20 and 115,300.80 is: 173,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,374.40 : 176,407.20 = 115,300.80 : x
  2. Step 2: Convert to fraction form
    117,374.40/176,407.20 = 115,300.80/x
  3. Step 3: Cross multiply
    117,374.40x = 176,407.20 × 115,300.80
  4. Step 4: Simplify right side
    117,374.40x = 20,339,891,285.76
  5. Step 5: Solve for x
    x = 20,339,891,285.76/117,374.40
  6. Step 6: Final answer
    x = 173,290.69

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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.