Home / 210,321.32-290,276.76-133,760.60

Finding the Fourth Proportional to 210,321.32, 290,276.76 and 133,760.60

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Solution

The fourth proportional to 210,321.32, 290,276.76 and 133,760.60 is: 184,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,321.32 : 290,276.76 = 133,760.60 : x
  2. Step 2: Convert to fraction form
    210,321.32/290,276.76 = 133,760.60/x
  3. Step 3: Cross multiply
    210,321.32x = 290,276.76 × 133,760.60
  4. Step 4: Simplify right side
    210,321.32x = 38,827,593,583.66
  5. Step 5: Solve for x
    x = 38,827,593,583.66/210,321.32
  6. Step 6: Final answer
    x = 184,610.83

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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.