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Finding the Fourth Proportional to 366,943.60, 550,415.40 and 340,371.55

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Solution

The fourth proportional to 366,943.60, 550,415.40 and 340,371.55 is: 510,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,943.60 : 550,415.40 = 340,371.55 : x
  2. Step 2: Convert to fraction form
    366,943.60/550,415.40 = 340,371.55/x
  3. Step 3: Cross multiply
    366,943.60x = 550,415.40 × 340,371.55
  4. Step 4: Simplify right side
    366,943.60x = 187,345,742,841.87
  5. Step 5: Solve for x
    x = 187,345,742,841.87/366,943.60
  6. Step 6: Final answer
    x = 510,557.33

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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.