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Finding the Fourth Proportional to 282,048.63, 389,220.44 and 154,723.11

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Solution

The fourth proportional to 282,048.63, 389,220.44 and 154,723.11 is: 213,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,048.63 : 389,220.44 = 154,723.11 : x
  2. Step 2: Convert to fraction form
    282,048.63/389,220.44 = 154,723.11/x
  3. Step 3: Cross multiply
    282,048.63x = 389,220.44 × 154,723.11
  4. Step 4: Simplify right side
    282,048.63x = 60,221,396,178.75
  5. Step 5: Solve for x
    x = 60,221,396,178.75/282,048.63
  6. Step 6: Final answer
    x = 213,514.23

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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.