Home / 209,912.08-314,890.32-76,804.24

Finding the Fourth Proportional to 209,912.08, 314,890.32 and 76,804.24

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Solution

The fourth proportional to 209,912.08, 314,890.32 and 76,804.24 is: 115,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,912.08 : 314,890.32 = 76,804.24 : x
  2. Step 2: Convert to fraction form
    209,912.08/314,890.32 = 76,804.24/x
  3. Step 3: Cross multiply
    209,912.08x = 314,890.32 × 76,804.24
  4. Step 4: Simplify right side
    209,912.08x = 24,184,911,710.96
  5. Step 5: Solve for x
    x = 24,184,911,710.96/209,912.08
  6. Step 6: Final answer
    x = 115,214.48

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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.