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Finding the Fourth Proportional to 210,231.08, 290,119.76 and 114,739.80

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Solution

The fourth proportional to 210,231.08, 290,119.76 and 114,739.80 is: 158,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,231.08 : 290,119.76 = 114,739.80 : x
  2. Step 2: Convert to fraction form
    210,231.08/290,119.76 = 114,739.80/x
  3. Step 3: Cross multiply
    210,231.08x = 290,119.76 × 114,739.80
  4. Step 4: Simplify right side
    210,231.08x = 33,288,283,238.45
  5. Step 5: Solve for x
    x = 33,288,283,238.45/210,231.08
  6. Step 6: Final answer
    x = 158,341.40

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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.