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Finding the Fourth Proportional to 305,901.46, 422,172.56 and 185,072.45

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Solution

The fourth proportional to 305,901.46, 422,172.56 and 185,072.45 is: 255,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,901.46 : 422,172.56 = 185,072.45 : x
  2. Step 2: Convert to fraction form
    305,901.46/422,172.56 = 185,072.45/x
  3. Step 3: Cross multiply
    305,901.46x = 422,172.56 × 185,072.45
  4. Step 4: Simplify right side
    305,901.46x = 78,132,507,312.76
  5. Step 5: Solve for x
    x = 78,132,507,312.76/305,901.46
  6. Step 6: Final answer
    x = 255,417.24

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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.