Home / 311,865.32-430,374.33-168,625.23

Finding the Fourth Proportional to 311,865.32, 430,374.33 and 168,625.23

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Solution

The fourth proportional to 311,865.32, 430,374.33 and 168,625.23 is: 232,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,865.32 : 430,374.33 = 168,625.23 : x
  2. Step 2: Convert to fraction form
    311,865.32/430,374.33 = 168,625.23/x
  3. Step 3: Cross multiply
    311,865.32x = 430,374.33 × 168,625.23
  4. Step 4: Simplify right side
    311,865.32x = 72,571,968,768.44
  5. Step 5: Solve for x
    x = 72,571,968,768.44/311,865.32
  6. Step 6: Final answer
    x = 232,702.91

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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.