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Finding the Fourth Proportional to 306,907.00, 423,384.97 and 238,455.52

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Solution

The fourth proportional to 306,907.00, 423,384.97 and 238,455.52 is: 328,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,907.00 : 423,384.97 = 238,455.52 : x
  2. Step 2: Convert to fraction form
    306,907.00/423,384.97 = 238,455.52/x
  3. Step 3: Cross multiply
    306,907.00x = 423,384.97 × 238,455.52
  4. Step 4: Simplify right side
    306,907.00x = 100,958,481,526.93
  5. Step 5: Solve for x
    x = 100,958,481,526.93/306,907.00
  6. Step 6: Final answer
    x = 328,954.64

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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.