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Finding the Fourth Proportional to 195,673.51, 270,573 and 155,317.21

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Solution

The fourth proportional to 195,673.51, 270,573 and 155,317.21 is: 214,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,673.51 : 270,573 = 155,317.21 : x
  2. Step 2: Convert to fraction form
    195,673.51/270,573 = 155,317.21/x
  3. Step 3: Cross multiply
    195,673.51x = 270,573 × 155,317.21
  4. Step 4: Simplify right side
    195,673.51x = 42,024,643,461.33
  5. Step 5: Solve for x
    x = 42,024,643,461.33/195,673.51
  6. Step 6: Final answer
    x = 214,769.20

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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.