Home / 345,126.84-476,296.65-209,172.66

Finding the Fourth Proportional to 345,126.84, 476,296.65 and 209,172.66

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Solution

The fourth proportional to 345,126.84, 476,296.65 and 209,172.66 is: 288,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,126.84 : 476,296.65 = 209,172.66 : x
  2. Step 2: Convert to fraction form
    345,126.84/476,296.65 = 209,172.66/x
  3. Step 3: Cross multiply
    345,126.84x = 476,296.65 × 209,172.66
  4. Step 4: Simplify right side
    345,126.84x = 99,628,237,229.59
  5. Step 5: Solve for x
    x = 99,628,237,229.59/345,126.84
  6. Step 6: Final answer
    x = 288,671.37

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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.