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Finding the Fourth Proportional to 229,381.87, 316,662.04 and 143,388.69

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Solution

The fourth proportional to 229,381.87, 316,662.04 and 143,388.69 is: 197,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,381.87 : 316,662.04 = 143,388.69 : x
  2. Step 2: Convert to fraction form
    229,381.87/316,662.04 = 143,388.69/x
  3. Step 3: Cross multiply
    229,381.87x = 316,662.04 × 143,388.69
  4. Step 4: Simplify right side
    229,381.87x = 45,405,755,088.33
  5. Step 5: Solve for x
    x = 45,405,755,088.33/229,381.87
  6. Step 6: Final answer
    x = 197,948.32

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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.