Home / 210,829.94-290,952.20-115,336.64

Finding the Fourth Proportional to 210,829.94, 290,952.20 and 115,336.64

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Solution

The fourth proportional to 210,829.94, 290,952.20 and 115,336.64 is: 159,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,829.94 : 290,952.20 = 115,336.64 : x
  2. Step 2: Convert to fraction form
    210,829.94/290,952.20 = 115,336.64/x
  3. Step 3: Cross multiply
    210,829.94x = 290,952.20 × 115,336.64
  4. Step 4: Simplify right side
    210,829.94x = 33,557,447,878.96
  5. Step 5: Solve for x
    x = 33,557,447,878.96/210,829.94
  6. Step 6: Final answer
    x = 159,168.32

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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.