Home / 210,513.08-290,512.24-115,025.68

Finding the Fourth Proportional to 210,513.08, 290,512.24 and 115,025.68

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Solution

The fourth proportional to 210,513.08, 290,512.24 and 115,025.68 is: 158,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,513.08 : 290,512.24 = 115,025.68 : x
  2. Step 2: Convert to fraction form
    210,513.08/290,512.24 = 115,025.68/x
  3. Step 3: Cross multiply
    210,513.08x = 290,512.24 × 115,025.68
  4. Step 4: Simplify right side
    210,513.08x = 33,416,367,954.32
  5. Step 5: Solve for x
    x = 33,416,367,954.32/210,513.08
  6. Step 6: Final answer
    x = 158,737.73

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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.