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Finding the Fourth Proportional to 188,955.28, 260,746.31 and 104,072.34

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Solution

The fourth proportional to 188,955.28, 260,746.31 and 104,072.34 is: 143,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,955.28 : 260,746.31 = 104,072.34 : x
  2. Step 2: Convert to fraction form
    188,955.28/260,746.31 = 104,072.34/x
  3. Step 3: Cross multiply
    188,955.28x = 260,746.31 × 104,072.34
  4. Step 4: Simplify right side
    188,955.28x = 27,136,476,803.97
  5. Step 5: Solve for x
    x = 27,136,476,803.97/188,955.28
  6. Step 6: Final answer
    x = 143,613.22

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1.5x scale

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.