Home / 282,056.32-389,231.04-154,730.80

Finding the Fourth Proportional to 282,056.32, 389,231.04 and 154,730.80

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Solution

The fourth proportional to 282,056.32, 389,231.04 and 154,730.80 is: 213,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,056.32 : 389,231.04 = 154,730.80 : x
  2. Step 2: Convert to fraction form
    282,056.32/389,231.04 = 154,730.80/x
  3. Step 3: Cross multiply
    282,056.32x = 389,231.04 × 154,730.80
  4. Step 4: Simplify right side
    282,056.32x = 60,226,029,230.95
  5. Step 5: Solve for x
    x = 60,226,029,230.95/282,056.32
  6. Step 6: Final answer
    x = 213,524.84

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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.