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Finding the Fourth Proportional to 185,415.50, 255,915.17 and 108,959.16

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Solution

The fourth proportional to 185,415.50, 255,915.17 and 108,959.16 is: 150,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,415.50 : 255,915.17 = 108,959.16 : x
  2. Step 2: Convert to fraction form
    185,415.50/255,915.17 = 108,959.16/x
  3. Step 3: Cross multiply
    185,415.50x = 255,915.17 × 108,959.16
  4. Step 4: Simplify right side
    185,415.50x = 27,884,301,409.66
  5. Step 5: Solve for x
    x = 27,884,301,409.66/185,415.50
  6. Step 6: Final answer
    x = 150,388.19

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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.