Home / 312,087.75-430,680.95-176,150.21

Finding the Fourth Proportional to 312,087.75, 430,680.95 and 176,150.21

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Solution

The fourth proportional to 312,087.75, 430,680.95 and 176,150.21 is: 243,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,087.75 : 430,680.95 = 176,150.21 : x
  2. Step 2: Convert to fraction form
    312,087.75/430,680.95 = 176,150.21/x
  3. Step 3: Cross multiply
    312,087.75x = 430,680.95 × 176,150.21
  4. Step 4: Simplify right side
    312,087.75x = 75,864,541,522.77
  5. Step 5: Solve for x
    x = 75,864,541,522.77/312,087.75
  6. Step 6: Final answer
    x = 243,087.21

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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.