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Finding the Fourth Proportional to 282,481, 389,858.34 and 163,249

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Solution

The fourth proportional to 282,481, 389,858.34 and 163,249 is: 225,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,481 : 389,858.34 = 163,249 : x
  2. Step 2: Convert to fraction form
    282,481/389,858.34 = 163,249/x
  3. Step 3: Cross multiply
    282,481x = 389,858.34 × 163,249
  4. Step 4: Simplify right side
    282,481x = 63,643,984,146.66
  5. Step 5: Solve for x
    x = 63,643,984,146.66/282,481
  6. Step 6: Final answer
    x = 225,303.59

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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.