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Finding the Fourth Proportional to 380,758.92, 525,450.44 and 210,995.88

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Solution

The fourth proportional to 380,758.92, 525,450.44 and 210,995.88 is: 291,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,758.92 : 525,450.44 = 210,995.88 : x
  2. Step 2: Convert to fraction form
    380,758.92/525,450.44 = 210,995.88/x
  3. Step 3: Cross multiply
    380,758.92x = 525,450.44 × 210,995.88
  4. Step 4: Simplify right side
    380,758.92x = 110,867,877,984.19
  5. Step 5: Solve for x
    x = 110,867,877,984.19/380,758.92
  6. Step 6: Final answer
    x = 291,176.05

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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.