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Finding the Fourth Proportional to 311,580.60, 467,370.90 and 309,612.30

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Solution

The fourth proportional to 311,580.60, 467,370.90 and 309,612.30 is: 464,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,580.60 : 467,370.90 = 309,612.30 : x
  2. Step 2: Convert to fraction form
    311,580.60/467,370.90 = 309,612.30/x
  3. Step 3: Cross multiply
    311,580.60x = 467,370.90 × 309,612.30
  4. Step 4: Simplify right side
    311,580.60x = 144,703,779,302.07
  5. Step 5: Solve for x
    x = 144,703,779,302.07/311,580.60
  6. Step 6: Final answer
    x = 464,418.45

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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.