Home / 282,488.85-389,841.39-153,432.09

Finding the Fourth Proportional to 282,488.85, 389,841.39 and 153,432.09

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Solution

The fourth proportional to 282,488.85, 389,841.39 and 153,432.09 is: 211,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,488.85 : 389,841.39 = 153,432.09 : x
  2. Step 2: Convert to fraction form
    282,488.85/389,841.39 = 153,432.09/x
  3. Step 3: Cross multiply
    282,488.85x = 389,841.39 × 153,432.09
  4. Step 4: Simplify right side
    282,488.85x = 59,814,179,236.21
  5. Step 5: Solve for x
    x = 59,814,179,236.21/282,488.85
  6. Step 6: Final answer
    x = 211,739.97

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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.