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Finding the Fourth Proportional to 210,143.70, 313,177.28 and 203,419.08

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Solution

The fourth proportional to 210,143.70, 313,177.28 and 203,419.08 is: 303,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,143.70 : 313,177.28 = 203,419.08 : x
  2. Step 2: Convert to fraction form
    210,143.70/313,177.28 = 203,419.08/x
  3. Step 3: Cross multiply
    210,143.70x = 313,177.28 × 203,419.08
  4. Step 4: Simplify right side
    210,143.70x = 63,706,233,157.41
  5. Step 5: Solve for x
    x = 63,706,233,157.41/210,143.70
  6. Step 6: Final answer
    x = 303,155.57

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.