Home / 283,392.45-391,075.72-154,333.18

Finding the Fourth Proportional to 283,392.45, 391,075.72 and 154,333.18

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Solution

The fourth proportional to 283,392.45, 391,075.72 and 154,333.18 is: 212,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,392.45 : 391,075.72 = 154,333.18 : x
  2. Step 2: Convert to fraction form
    283,392.45/391,075.72 = 154,333.18/x
  3. Step 3: Cross multiply
    283,392.45x = 391,075.72 × 154,333.18
  4. Step 4: Simplify right side
    283,392.45x = 60,355,958,124.87
  5. Step 5: Solve for x
    x = 60,355,958,124.87/283,392.45
  6. Step 6: Final answer
    x = 212,976.59

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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.