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Finding the Fourth Proportional to 329,875.36, 454,927.44 and 278,994.76

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Solution

The fourth proportional to 329,875.36, 454,927.44 and 278,994.76 is: 384,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,875.36 : 454,927.44 = 278,994.76 : x
  2. Step 2: Convert to fraction form
    329,875.36/454,927.44 = 278,994.76/x
  3. Step 3: Cross multiply
    329,875.36x = 454,927.44 × 278,994.76
  4. Step 4: Simplify right side
    329,875.36x = 126,922,371,940.21
  5. Step 5: Solve for x
    x = 126,922,371,940.21/329,875.36
  6. Step 6: Final answer
    x = 384,758.57

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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.