Home / 312,221.66-430,867.17-168,981.66

Finding the Fourth Proportional to 312,221.66, 430,867.17 and 168,981.66

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Solution

The fourth proportional to 312,221.66, 430,867.17 and 168,981.66 is: 233,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,221.66 : 430,867.17 = 168,981.66 : x
  2. Step 2: Convert to fraction form
    312,221.66/430,867.17 = 168,981.66/x
  3. Step 3: Cross multiply
    312,221.66x = 430,867.17 × 168,981.66
  4. Step 4: Simplify right side
    312,221.66x = 72,808,649,626.10
  5. Step 5: Solve for x
    x = 72,808,649,626.10/312,221.66
  6. Step 6: Final answer
    x = 233,195.39

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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.