Home / 326,216.16-489,025.08-126,485.28

Finding the Fourth Proportional to 326,216.16, 489,025.08 and 126,485.28

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Solution

The fourth proportional to 326,216.16, 489,025.08 and 126,485.28 is: 189,611.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,216.16 : 489,025.08 = 126,485.28 : x
  2. Step 2: Convert to fraction form
    326,216.16/489,025.08 = 126,485.28/x
  3. Step 3: Cross multiply
    326,216.16x = 489,025.08 × 126,485.28
  4. Step 4: Simplify right side
    326,216.16x = 61,854,474,170.82
  5. Step 5: Solve for x
    x = 61,854,474,170.82/326,216.16
  6. Step 6: Final answer
    x = 189,611.93

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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.