Home / 311,986.64-430,541.60-168,746.69

Finding the Fourth Proportional to 311,986.64, 430,541.60 and 168,746.69

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Solution

The fourth proportional to 311,986.64, 430,541.60 and 168,746.69 is: 232,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,986.64 : 430,541.60 = 168,746.69 : x
  2. Step 2: Convert to fraction form
    311,986.64/430,541.60 = 168,746.69/x
  3. Step 3: Cross multiply
    311,986.64x = 430,541.60 × 168,746.69
  4. Step 4: Simplify right side
    311,986.64x = 72,652,469,907.30
  5. Step 5: Solve for x
    x = 72,652,469,907.30/311,986.64
  6. Step 6: Final answer
    x = 232,870.45

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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.