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Finding the Fourth Proportional to 268,446.70, 370,458.84 and 145,939.33

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Solution

The fourth proportional to 268,446.70, 370,458.84 and 145,939.33 is: 201,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,446.70 : 370,458.84 = 145,939.33 : x
  2. Step 2: Convert to fraction form
    268,446.70/370,458.84 = 145,939.33/x
  3. Step 3: Cross multiply
    268,446.70x = 370,458.84 × 145,939.33
  4. Step 4: Simplify right side
    268,446.70x = 54,064,514,902.18
  5. Step 5: Solve for x
    x = 54,064,514,902.18/268,446.70
  6. Step 6: Final answer
    x = 201,397.58

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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.