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Finding the Fourth Proportional to 282,008.74, 389,190.59 and 154,684.35

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Solution

The fourth proportional to 282,008.74, 389,190.59 and 154,684.35 is: 213,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,008.74 : 389,190.59 = 154,684.35 : x
  2. Step 2: Convert to fraction form
    282,008.74/389,190.59 = 154,684.35/x
  3. Step 3: Cross multiply
    282,008.74x = 389,190.59 × 154,684.35
  4. Step 4: Simplify right side
    282,008.74x = 60,201,693,440.27
  5. Step 5: Solve for x
    x = 60,201,693,440.27/282,008.74
  6. Step 6: Final answer
    x = 213,474.57

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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.