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Finding the Fourth Proportional to 383,054.69, 528,362.32 and 239,565.62

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Solution

The fourth proportional to 383,054.69, 528,362.32 and 239,565.62 is: 330,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,054.69 : 528,362.32 = 239,565.62 : x
  2. Step 2: Convert to fraction form
    383,054.69/528,362.32 = 239,565.62/x
  3. Step 3: Cross multiply
    383,054.69x = 528,362.32 × 239,565.62
  4. Step 4: Simplify right side
    383,054.69x = 126,577,446,775.44
  5. Step 5: Solve for x
    x = 126,577,446,775.44/383,054.69
  6. Step 6: Final answer
    x = 330,442.23

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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.