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Finding the Fourth Proportional to 323,738.20, 484,829.70 and 309,741.40

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Solution

The fourth proportional to 323,738.20, 484,829.70 and 309,741.40 is: 463,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,738.20 : 484,829.70 = 309,741.40 : x
  2. Step 2: Convert to fraction form
    323,738.20/484,829.70 = 309,741.40/x
  3. Step 3: Cross multiply
    323,738.20x = 484,829.70 × 309,741.40
  4. Step 4: Simplify right side
    323,738.20x = 150,171,830,039.58
  5. Step 5: Solve for x
    x = 150,171,830,039.58/323,738.20
  6. Step 6: Final answer
    x = 463,868.12

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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.