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Finding the Fourth Proportional to 147,368.70, 220,999.05 and 47,555.10

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Solution

The fourth proportional to 147,368.70, 220,999.05 and 47,555.10 is: 71,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,368.70 : 220,999.05 = 47,555.10 : x
  2. Step 2: Convert to fraction form
    147,368.70/220,999.05 = 47,555.10/x
  3. Step 3: Cross multiply
    147,368.70x = 220,999.05 × 47,555.10
  4. Step 4: Simplify right side
    147,368.70x = 10,509,631,922.66
  5. Step 5: Solve for x
    x = 10,509,631,922.66/147,368.70
  6. Step 6: Final answer
    x = 71,315.22

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Why These Related Problems?

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