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Finding the Fourth Proportional to 282,370.63, 389,677.76 and 155,046.73

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Solution

The fourth proportional to 282,370.63, 389,677.76 and 155,046.73 is: 213,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,370.63 : 389,677.76 = 155,046.73 : x
  2. Step 2: Convert to fraction form
    282,370.63/389,677.76 = 155,046.73/x
  3. Step 3: Cross multiply
    282,370.63x = 389,677.76 × 155,046.73
  4. Step 4: Simplify right side
    282,370.63x = 60,418,262,441.72
  5. Step 5: Solve for x
    x = 60,418,262,441.72/282,370.63
  6. Step 6: Final answer
    x = 213,967.94

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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.