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Finding the Fourth Proportional to 339,293.70, 508,940.55 and 313,632.90

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Solution

The fourth proportional to 339,293.70, 508,940.55 and 313,632.90 is: 470,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,293.70 : 508,940.55 = 313,632.90 : x
  2. Step 2: Convert to fraction form
    339,293.70/508,940.55 = 313,632.90/x
  3. Step 3: Cross multiply
    339,293.70x = 508,940.55 × 313,632.90
  4. Step 4: Simplify right side
    339,293.70x = 159,620,500,624.10
  5. Step 5: Solve for x
    x = 159,620,500,624.10/339,293.70
  6. Step 6: Final answer
    x = 470,449.35

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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.