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Finding the Fourth Proportional to 303,377.40, 455,940.90 and 264,886.20

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Solution

The fourth proportional to 303,377.40, 455,940.90 and 264,886.20 is: 398,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,377.40 : 455,940.90 = 264,886.20 : x
  2. Step 2: Convert to fraction form
    303,377.40/455,940.90 = 264,886.20/x
  3. Step 3: Cross multiply
    303,377.40x = 455,940.90 × 264,886.20
  4. Step 4: Simplify right side
    303,377.40x = 120,772,452,425.58
  5. Step 5: Solve for x
    x = 120,772,452,425.58/303,377.40
  6. Step 6: Final answer
    x = 398,093.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.