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Finding the Fourth Proportional to 348,036.60, 522,054.90 and 278,052.60

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Solution

The fourth proportional to 348,036.60, 522,054.90 and 278,052.60 is: 417,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,036.60 : 522,054.90 = 278,052.60 : x
  2. Step 2: Convert to fraction form
    348,036.60/522,054.90 = 278,052.60/x
  3. Step 3: Cross multiply
    348,036.60x = 522,054.90 × 278,052.60
  4. Step 4: Simplify right side
    348,036.60x = 145,158,722,287.74
  5. Step 5: Solve for x
    x = 145,158,722,287.74/348,036.60
  6. Step 6: Final answer
    x = 417,078.90

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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.