Home / 345,577.73-476,919.09-209,624.49

Finding the Fourth Proportional to 345,577.73, 476,919.09 and 209,624.49

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Solution

The fourth proportional to 345,577.73, 476,919.09 and 209,624.49 is: 289,295.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,577.73 : 476,919.09 = 209,624.49 : x
  2. Step 2: Convert to fraction form
    345,577.73/476,919.09 = 209,624.49/x
  3. Step 3: Cross multiply
    345,577.73x = 476,919.09 × 209,624.49
  4. Step 4: Simplify right side
    345,577.73x = 99,973,921,012.51
  5. Step 5: Solve for x
    x = 99,973,921,012.51/345,577.73
  6. Step 6: Final answer
    x = 289,295.04

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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.