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Finding the Fourth Proportional to 281,513.38, 388,494.76 and 160,652.26

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Solution

The fourth proportional to 281,513.38, 388,494.76 and 160,652.26 is: 221,703.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,513.38 : 388,494.76 = 160,652.26 : x
  2. Step 2: Convert to fraction form
    281,513.38/388,494.76 = 160,652.26/x
  3. Step 3: Cross multiply
    281,513.38x = 388,494.76 × 160,652.26
  4. Step 4: Simplify right side
    281,513.38x = 62,412,561,192.16
  5. Step 5: Solve for x
    x = 62,412,561,192.16/281,513.38
  6. Step 6: Final answer
    x = 221,703.71

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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.