Home / 326,848.70-490,447.20-127,175.60

Finding the Fourth Proportional to 326,848.70, 490,447.20 and 127,175.60

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Solution

The fourth proportional to 326,848.70, 490,447.20 and 127,175.60 is: 190,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,848.70 : 490,447.20 = 127,175.60 : x
  2. Step 2: Convert to fraction form
    326,848.70/490,447.20 = 127,175.60/x
  3. Step 3: Cross multiply
    326,848.70x = 490,447.20 × 127,175.60
  4. Step 4: Simplify right side
    326,848.70x = 62,372,916,928.32
  5. Step 5: Solve for x
    x = 62,372,916,928.32/326,848.70
  6. Step 6: Final answer
    x = 190,831.16

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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.