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Finding the Fourth Proportional to 366,830.60, 550,245.90 and 260,542.40

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Solution

The fourth proportional to 366,830.60, 550,245.90 and 260,542.40 is: 390,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,830.60 : 550,245.90 = 260,542.40 : x
  2. Step 2: Convert to fraction form
    366,830.60/550,245.90 = 260,542.40/x
  3. Step 3: Cross multiply
    366,830.60x = 550,245.90 × 260,542.40
  4. Step 4: Simplify right side
    366,830.60x = 143,362,387,376.16
  5. Step 5: Solve for x
    x = 143,362,387,376.16/366,830.60
  6. Step 6: Final answer
    x = 390,813.60

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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.