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Finding the Fourth Proportional to 260,905.78, 357,352.01 and 245,585.86

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Solution

The fourth proportional to 260,905.78, 357,352.01 and 245,585.86 is: 336,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,905.78 : 357,352.01 = 245,585.86 : x
  2. Step 2: Convert to fraction form
    260,905.78/357,352.01 = 245,585.86/x
  3. Step 3: Cross multiply
    260,905.78x = 357,352.01 × 245,585.86
  4. Step 4: Simplify right side
    260,905.78x = 87,760,600,698.58
  5. Step 5: Solve for x
    x = 87,760,600,698.58/260,905.78
  6. Step 6: Final answer
    x = 336,368.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.