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Finding the Fourth Proportional to 366,903.60, 550,355.40 and 340,331.55

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Solution

The fourth proportional to 366,903.60, 550,355.40 and 340,331.55 is: 510,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,903.60 : 550,355.40 = 340,331.55 : x
  2. Step 2: Convert to fraction form
    366,903.60/550,355.40 = 340,331.55/x
  3. Step 3: Cross multiply
    366,903.60x = 550,355.40 × 340,331.55
  4. Step 4: Simplify right side
    366,903.60x = 187,303,306,332.87
  5. Step 5: Solve for x
    x = 187,303,306,332.87/366,903.60
  6. Step 6: Final answer
    x = 510,497.33

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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.