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Finding the Fourth Proportional to 282,016.40, 423,485.40 and 188,934.80

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Solution

The fourth proportional to 282,016.40, 423,485.40 and 188,934.80 is: 283,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,016.40 : 423,485.40 = 188,934.80 : x
  2. Step 2: Convert to fraction form
    282,016.40/423,485.40 = 188,934.80/x
  3. Step 3: Cross multiply
    282,016.40x = 423,485.40 × 188,934.80
  4. Step 4: Simplify right side
    282,016.40x = 80,011,129,351.92
  5. Step 5: Solve for x
    x = 80,011,129,351.92/282,016.40
  6. Step 6: Final answer
    x = 283,710.91

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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.