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Finding the Fourth Proportional to 345,384.94, 476,500.14 and 209,369.26

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Solution

The fourth proportional to 345,384.94, 476,500.14 and 209,369.26 is: 288,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,384.94 : 476,500.14 = 209,369.26 : x
  2. Step 2: Convert to fraction form
    345,384.94/476,500.14 = 209,369.26/x
  3. Step 3: Cross multiply
    345,384.94x = 476,500.14 × 209,369.26
  4. Step 4: Simplify right side
    345,384.94x = 99,764,481,701.70
  5. Step 5: Solve for x
    x = 99,764,481,701.70/345,384.94
  6. Step 6: Final answer
    x = 288,850.12

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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.