Home / 311,852.28-430,355.76-168,611.92

Finding the Fourth Proportional to 311,852.28, 430,355.76 and 168,611.92

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Solution

The fourth proportional to 311,852.28, 430,355.76 and 168,611.92 is: 232,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,852.28 : 430,355.76 = 168,611.92 : x
  2. Step 2: Convert to fraction form
    311,852.28/430,355.76 = 168,611.92/x
  3. Step 3: Cross multiply
    311,852.28x = 430,355.76 × 168,611.92
  4. Step 4: Simplify right side
    311,852.28x = 72,563,110,976.66
  5. Step 5: Solve for x
    x = 72,563,110,976.66/311,852.28
  6. Step 6: Final answer
    x = 232,684.24

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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.