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Finding the Fourth Proportional to 281,523.63, 388,508.93 and 160,662.51

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Solution

The fourth proportional to 281,523.63, 388,508.93 and 160,662.51 is: 221,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,523.63 : 388,508.93 = 160,662.51 : x
  2. Step 2: Convert to fraction form
    281,523.63/388,508.93 = 160,662.51/x
  3. Step 3: Cross multiply
    281,523.63x = 388,508.93 × 160,662.51
  4. Step 4: Simplify right side
    281,523.63x = 62,418,819,047.90
  5. Step 5: Solve for x
    x = 62,418,819,047.90/281,523.63
  6. Step 6: Final answer
    x = 221,717.87

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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.