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Finding the Fourth Proportional to 306,883.36, 423,482.54 and 169,057.76

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Solution

The fourth proportional to 306,883.36, 423,482.54 and 169,057.76 is: 233,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,883.36 : 423,482.54 = 169,057.76 : x
  2. Step 2: Convert to fraction form
    306,883.36/423,482.54 = 169,057.76/x
  3. Step 3: Cross multiply
    306,883.36x = 423,482.54 × 169,057.76
  4. Step 4: Simplify right side
    306,883.36x = 71,593,009,611.51
  5. Step 5: Solve for x
    x = 71,593,009,611.51/306,883.36
  6. Step 6: Final answer
    x = 233,290.62

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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.