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Finding the Fourth Proportional to 329,396.72, 454,400.52 and 208,334.12

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Solution

The fourth proportional to 329,396.72, 454,400.52 and 208,334.12 is: 287,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,396.72 : 454,400.52 = 208,334.12 : x
  2. Step 2: Convert to fraction form
    329,396.72/454,400.52 = 208,334.12/x
  3. Step 3: Cross multiply
    329,396.72x = 454,400.52 × 208,334.12
  4. Step 4: Simplify right side
    329,396.72x = 94,667,132,461.74
  5. Step 5: Solve for x
    x = 94,667,132,461.74/329,396.72
  6. Step 6: Final answer
    x = 287,395.49

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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.