Home / 216,683.12-324,674.76-83,407.34

Finding the Fourth Proportional to 216,683.12, 324,674.76 and 83,407.34

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Solution

The fourth proportional to 216,683.12, 324,674.76 and 83,407.34 is: 124,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,683.12 : 324,674.76 = 83,407.34 : x
  2. Step 2: Convert to fraction form
    216,683.12/324,674.76 = 83,407.34/x
  3. Step 3: Cross multiply
    216,683.12x = 324,674.76 × 83,407.34
  4. Step 4: Simplify right side
    216,683.12x = 27,080,258,096.74
  5. Step 5: Solve for x
    x = 27,080,258,096.74/216,683.12
  6. Step 6: Final answer
    x = 124,976.32

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1.5x scale

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.