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Finding the Fourth Proportional to 340,289.78, 510,508.58 and 103,626.27

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Solution

The fourth proportional to 340,289.78, 510,508.58 and 103,626.27 is: 155,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,289.78 : 510,508.58 = 103,626.27 : x
  2. Step 2: Convert to fraction form
    340,289.78/510,508.58 = 103,626.27/x
  3. Step 3: Cross multiply
    340,289.78x = 510,508.58 × 103,626.27
  4. Step 4: Simplify right side
    340,289.78x = 52,902,099,430.27
  5. Step 5: Solve for x
    x = 52,902,099,430.27/340,289.78
  6. Step 6: Final answer
    x = 155,461.91

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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.