Home / 301,056.87-415,148.33-210,379.60

Finding the Fourth Proportional to 301,056.87, 415,148.33 and 210,379.60

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Solution

The fourth proportional to 301,056.87, 415,148.33 and 210,379.60 is: 290,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,056.87 : 415,148.33 = 210,379.60 : x
  2. Step 2: Convert to fraction form
    301,056.87/415,148.33 = 210,379.60/x
  3. Step 3: Cross multiply
    301,056.87x = 415,148.33 × 210,379.60
  4. Step 4: Simplify right side
    301,056.87x = 87,338,736,478.43
  5. Step 5: Solve for x
    x = 87,338,736,478.43/301,056.87
  6. Step 6: Final answer
    x = 290,107.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.