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Finding the Fourth Proportional to 210,845.96, 290,866.92 and 130,244.48

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Solution

The fourth proportional to 210,845.96, 290,866.92 and 130,244.48 is: 179,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,845.96 : 290,866.92 = 130,244.48 : x
  2. Step 2: Convert to fraction form
    210,845.96/290,866.92 = 130,244.48/x
  3. Step 3: Cross multiply
    210,845.96x = 290,866.92 × 130,244.48
  4. Step 4: Simplify right side
    210,845.96x = 37,883,810,744.60
  5. Step 5: Solve for x
    x = 37,883,810,744.60/210,845.96
  6. Step 6: Final answer
    x = 179,675.30

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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.