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Finding the Fourth Proportional to 289,647.33, 399,725.96 and 160,577.58

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Solution

The fourth proportional to 289,647.33, 399,725.96 and 160,577.58 is: 221,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,647.33 : 399,725.96 = 160,577.58 : x
  2. Step 2: Convert to fraction form
    289,647.33/399,725.96 = 160,577.58/x
  3. Step 3: Cross multiply
    289,647.33x = 399,725.96 × 160,577.58
  4. Step 4: Simplify right side
    289,647.33x = 64,187,029,220.39
  5. Step 5: Solve for x
    x = 64,187,029,220.39/289,647.33
  6. Step 6: Final answer
    x = 221,604.08

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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.