Home / 311,926.80-467,890.20-309,302.40

Finding the Fourth Proportional to 311,926.80, 467,890.20 and 309,302.40

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Solution

The fourth proportional to 311,926.80, 467,890.20 and 309,302.40 is: 463,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,926.80 : 467,890.20 = 309,302.40 : x
  2. Step 2: Convert to fraction form
    311,926.80/467,890.20 = 309,302.40/x
  3. Step 3: Cross multiply
    311,926.80x = 467,890.20 × 309,302.40
  4. Step 4: Simplify right side
    311,926.80x = 144,719,561,796.48
  5. Step 5: Solve for x
    x = 144,719,561,796.48/311,926.80
  6. Step 6: Final answer
    x = 463,953.60

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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.