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Finding the Fourth Proportional to 311,843.64, 430,454.85 and 184,518.93

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Solution

The fourth proportional to 311,843.64, 430,454.85 and 184,518.93 is: 254,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,843.64 : 430,454.85 = 184,518.93 : x
  2. Step 2: Convert to fraction form
    311,843.64/430,454.85 = 184,518.93/x
  3. Step 3: Cross multiply
    311,843.64x = 430,454.85 × 184,518.93
  4. Step 4: Simplify right side
    311,843.64x = 79,427,068,335.31
  5. Step 5: Solve for x
    x = 79,427,068,335.31/311,843.64
  6. Step 6: Final answer
    x = 254,701.58

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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.