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Finding the Fourth Proportional to 210,737.66, 290,817.96 and 115,244.42

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Solution

The fourth proportional to 210,737.66, 290,817.96 and 115,244.42 is: 159,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,737.66 : 290,817.96 = 115,244.42 : x
  2. Step 2: Convert to fraction form
    210,737.66/290,817.96 = 115,244.42/x
  3. Step 3: Cross multiply
    210,737.66x = 290,817.96 × 115,244.42
  4. Step 4: Simplify right side
    210,737.66x = 33,515,147,125.78
  5. Step 5: Solve for x
    x = 33,515,147,125.78/210,737.66
  6. Step 6: Final answer
    x = 159,037.29

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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.