Home / 312,181.56-430,811.63-168,941.57

Finding the Fourth Proportional to 312,181.56, 430,811.63 and 168,941.57

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Solution

The fourth proportional to 312,181.56, 430,811.63 and 168,941.57 is: 233,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,181.56 : 430,811.63 = 168,941.57 : x
  2. Step 2: Convert to fraction form
    312,181.56/430,811.63 = 168,941.57/x
  3. Step 3: Cross multiply
    312,181.56x = 430,811.63 × 168,941.57
  4. Step 4: Simplify right side
    312,181.56x = 72,781,993,146.46
  5. Step 5: Solve for x
    x = 72,781,993,146.46/312,181.56
  6. Step 6: Final answer
    x = 233,139.95

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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.