Home / 210,784.86-290,880.99-115,293.42

Finding the Fourth Proportional to 210,784.86, 290,880.99 and 115,293.42

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Solution

The fourth proportional to 210,784.86, 290,880.99 and 115,293.42 is: 159,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,784.86 : 290,880.99 = 115,293.42 : x
  2. Step 2: Convert to fraction form
    210,784.86/290,880.99 = 115,293.42/x
  3. Step 3: Cross multiply
    210,784.86x = 290,880.99 × 115,293.42
  4. Step 4: Simplify right side
    210,784.86x = 33,536,664,150.09
  5. Step 5: Solve for x
    x = 33,536,664,150.09/210,784.86
  6. Step 6: Final answer
    x = 159,103.76

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1.5x scale

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.