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Finding the Fourth Proportional to 275,192.80, 412,400.40 and 169,698.40

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Solution

The fourth proportional to 275,192.80, 412,400.40 and 169,698.40 is: 254,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,192.80 : 412,400.40 = 169,698.40 : x
  2. Step 2: Convert to fraction form
    275,192.80/412,400.40 = 169,698.40/x
  3. Step 3: Cross multiply
    275,192.80x = 412,400.40 × 169,698.40
  4. Step 4: Simplify right side
    275,192.80x = 69,983,688,039.36
  5. Step 5: Solve for x
    x = 69,983,688,039.36/275,192.80
  6. Step 6: Final answer
    x = 254,307.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.