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Finding the Fourth Proportional to 147,480, 221,220.81 and 36,672

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Solution

The fourth proportional to 147,480, 221,220.81 and 36,672 is: 55,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,480 : 221,220.81 = 36,672 : x
  2. Step 2: Convert to fraction form
    147,480/221,220.81 = 36,672/x
  3. Step 3: Cross multiply
    147,480x = 221,220.81 × 36,672
  4. Step 4: Simplify right side
    147,480x = 8,112,609,544.32
  5. Step 5: Solve for x
    x = 8,112,609,544.32/147,480
  6. Step 6: Final answer
    x = 55,008.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.