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Finding the Fourth Proportional to 383,329.95, 528,636.53 and 302,949.50

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Solution

The fourth proportional to 383,329.95, 528,636.53 and 302,949.50 is: 417,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,329.95 : 528,636.53 = 302,949.50 : x
  2. Step 2: Convert to fraction form
    383,329.95/528,636.53 = 302,949.50/x
  3. Step 3: Cross multiply
    383,329.95x = 528,636.53 × 302,949.50
  4. Step 4: Simplify right side
    383,329.95x = 160,150,173,533.01
  5. Step 5: Solve for x
    x = 160,150,173,533.01/383,329.95
  6. Step 6: Final answer
    x = 417,786.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.