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Finding the Fourth Proportional to 311,464.80, 466,905.60 and 243,959.40

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Solution

The fourth proportional to 311,464.80, 466,905.60 and 243,959.40 is: 365,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,464.80 : 466,905.60 = 243,959.40 : x
  2. Step 2: Convert to fraction form
    311,464.80/466,905.60 = 243,959.40/x
  3. Step 3: Cross multiply
    311,464.80x = 466,905.60 × 243,959.40
  4. Step 4: Simplify right side
    311,464.80x = 113,906,010,032.64
  5. Step 5: Solve for x
    x = 113,906,010,032.64/311,464.80
  6. Step 6: Final answer
    x = 365,710.70

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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.