Home / 380,815.61-525,525.53-211,060.67

Finding the Fourth Proportional to 380,815.61, 525,525.53 and 211,060.67

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Solution

The fourth proportional to 380,815.61, 525,525.53 and 211,060.67 is: 291,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,815.61 : 525,525.53 = 211,060.67 : x
  2. Step 2: Convert to fraction form
    380,815.61/525,525.53 = 211,060.67/x
  3. Step 3: Cross multiply
    380,815.61x = 525,525.53 × 211,060.67
  4. Step 4: Simplify right side
    380,815.61x = 110,917,766,780.97
  5. Step 5: Solve for x
    x = 110,917,766,780.97/380,815.61
  6. Step 6: Final answer
    x = 291,263.71

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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.