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Finding the Fourth Proportional to 340,427, 510,873.78 and 118,811

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Solution

The fourth proportional to 340,427, 510,873.78 and 118,811 is: 178,297.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,427 : 510,873.78 = 118,811 : x
  2. Step 2: Convert to fraction form
    340,427/510,873.78 = 118,811/x
  3. Step 3: Cross multiply
    340,427x = 510,873.78 × 118,811
  4. Step 4: Simplify right side
    340,427x = 60,697,424,675.58
  5. Step 5: Solve for x
    x = 60,697,424,675.58/340,427
  6. Step 6: Final answer
    x = 178,297.92

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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.