Home / 345,289.88-476,523.96-209,329.55

Finding the Fourth Proportional to 345,289.88, 476,523.96 and 209,329.55

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Solution

The fourth proportional to 345,289.88, 476,523.96 and 209,329.55 is: 288,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,289.88 : 476,523.96 = 209,329.55 : x
  2. Step 2: Convert to fraction form
    345,289.88/476,523.96 = 209,329.55/x
  3. Step 3: Cross multiply
    345,289.88x = 476,523.96 × 209,329.55
  4. Step 4: Simplify right side
    345,289.88x = 99,750,543,728.40
  5. Step 5: Solve for x
    x = 99,750,543,728.40/345,289.88
  6. Step 6: Final answer
    x = 288,889.28

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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.