Home / 330,485.90-456,071.00-187,255.62

Finding the Fourth Proportional to 330,485.90, 456,071.00 and 187,255.62

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Solution

The fourth proportional to 330,485.90, 456,071.00 and 187,255.62 is: 258,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,485.90 : 456,071.00 = 187,255.62 : x
  2. Step 2: Convert to fraction form
    330,485.90/456,071.00 = 187,255.62/x
  3. Step 3: Cross multiply
    330,485.90x = 456,071.00 × 187,255.62
  4. Step 4: Simplify right side
    330,485.90x = 85,401,856,932.74
  5. Step 5: Solve for x
    x = 85,401,856,932.74/330,485.90
  6. Step 6: Final answer
    x = 258,413.02

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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.