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Finding the Fourth Proportional to 305,124.35, 421,096.44 and 169,200.90

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Solution

The fourth proportional to 305,124.35, 421,096.44 and 169,200.90 is: 233,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,124.35 : 421,096.44 = 169,200.90 : x
  2. Step 2: Convert to fraction form
    305,124.35/421,096.44 = 169,200.90/x
  3. Step 3: Cross multiply
    305,124.35x = 421,096.44 × 169,200.90
  4. Step 4: Simplify right side
    305,124.35x = 71,249,896,634.80
  5. Step 5: Solve for x
    x = 71,249,896,634.80/305,124.35
  6. Step 6: Final answer
    x = 233,511.02

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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.