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Finding the Fourth Proportional to 219,619.76, 303,075.28 and 119,017.76

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Solution

The fourth proportional to 219,619.76, 303,075.28 and 119,017.76 is: 164,244.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,619.76 : 303,075.28 = 119,017.76 : x
  2. Step 2: Convert to fraction form
    219,619.76/303,075.28 = 119,017.76/x
  3. Step 3: Cross multiply
    219,619.76x = 303,075.28 × 119,017.76
  4. Step 4: Simplify right side
    219,619.76x = 36,071,340,936.97
  5. Step 5: Solve for x
    x = 36,071,340,936.97/219,619.76
  6. Step 6: Final answer
    x = 164,244.51

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Why These Related Problems?

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