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Finding the Fourth Proportional to 220,881.64, 304,808.66 and 134,984.33

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Solution

The fourth proportional to 220,881.64, 304,808.66 and 134,984.33 is: 186,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,881.64 : 304,808.66 = 134,984.33 : x
  2. Step 2: Convert to fraction form
    220,881.64/304,808.66 = 134,984.33/x
  3. Step 3: Cross multiply
    220,881.64x = 304,808.66 × 134,984.33
  4. Step 4: Simplify right side
    220,881.64x = 41,144,393,529.36
  5. Step 5: Solve for x
    x = 41,144,393,529.36/220,881.64
  6. Step 6: Final answer
    x = 186,273.49

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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.