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Finding the Fourth Proportional to 329,310, 454,455.72 and 201,911.76

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Solution

The fourth proportional to 329,310, 454,455.72 and 201,911.76 is: 278,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,310 : 454,455.72 = 201,911.76 : x
  2. Step 2: Convert to fraction form
    329,310/454,455.72 = 201,911.76/x
  3. Step 3: Cross multiply
    329,310x = 454,455.72 × 201,911.76
  4. Step 4: Simplify right side
    329,310x = 91,759,954,267.27
  5. Step 5: Solve for x
    x = 91,759,954,267.27/329,310
  6. Step 6: Final answer
    x = 278,643.08

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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.