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Finding the Fourth Proportional to 213,908.72, 295,210.41 and 122,030.03

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Solution

The fourth proportional to 213,908.72, 295,210.41 and 122,030.03 is: 168,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,908.72 : 295,210.41 = 122,030.03 : x
  2. Step 2: Convert to fraction form
    213,908.72/295,210.41 = 122,030.03/x
  3. Step 3: Cross multiply
    213,908.72x = 295,210.41 × 122,030.03
  4. Step 4: Simplify right side
    213,908.72x = 36,024,533,712.56
  5. Step 5: Solve for x
    x = 36,024,533,712.56/213,908.72
  6. Step 6: Final answer
    x = 168,410.78

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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.