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Finding the Fourth Proportional to 329,336.01, 454,806.63 and 281,309.49

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Solution

The fourth proportional to 329,336.01, 454,806.63 and 281,309.49 is: 388,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,336.01 : 454,806.63 = 281,309.49 : x
  2. Step 2: Convert to fraction form
    329,336.01/454,806.63 = 281,309.49/x
  3. Step 3: Cross multiply
    329,336.01x = 454,806.63 × 281,309.49
  4. Step 4: Simplify right side
    329,336.01x = 127,941,421,133.92
  5. Step 5: Solve for x
    x = 127,941,421,133.92/329,336.01
  6. Step 6: Final answer
    x = 388,482.94

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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.