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Finding the Fourth Proportional to 210,173.67, 290,039.67 and 134,722.17

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Solution

The fourth proportional to 210,173.67, 290,039.67 and 134,722.17 is: 185,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,173.67 : 290,039.67 = 134,722.17 : x
  2. Step 2: Convert to fraction form
    210,173.67/290,039.67 = 134,722.17/x
  3. Step 3: Cross multiply
    210,173.67x = 290,039.67 × 134,722.17
  4. Step 4: Simplify right side
    210,173.67x = 39,074,773,728.48
  5. Step 5: Solve for x
    x = 39,074,773,728.48/210,173.67
  6. Step 6: Final answer
    x = 185,916.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.