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Finding the Fourth Proportional to 210,652.88, 290,706.44 and 125,818.80

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Solution

The fourth proportional to 210,652.88, 290,706.44 and 125,818.80 is: 173,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,652.88 : 290,706.44 = 125,818.80 : x
  2. Step 2: Convert to fraction form
    210,652.88/290,706.44 = 125,818.80/x
  3. Step 3: Cross multiply
    210,652.88x = 290,706.44 × 125,818.80
  4. Step 4: Simplify right side
    210,652.88x = 36,576,335,433.07
  5. Step 5: Solve for x
    x = 36,576,335,433.07/210,652.88
  6. Step 6: Final answer
    x = 173,633.21

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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.