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Finding the Fourth Proportional to 447,375.72, 617,393.04 and 256,425.12

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Solution

The fourth proportional to 447,375.72, 617,393.04 and 256,425.12 is: 353,875.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,375.72 : 617,393.04 = 256,425.12 : x
  2. Step 2: Convert to fraction form
    447,375.72/617,393.04 = 256,425.12/x
  3. Step 3: Cross multiply
    447,375.72x = 617,393.04 × 256,425.12
  4. Step 4: Simplify right side
    447,375.72x = 158,315,084,369.17
  5. Step 5: Solve for x
    x = 158,315,084,369.17/447,375.72
  6. Step 6: Final answer
    x = 353,875.00

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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.