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Finding the Fourth Proportional to 260,507.16, 388,419.72 and 238,265.04

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Solution

The fourth proportional to 260,507.16, 388,419.72 and 238,265.04 is: 355,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,507.16 : 388,419.72 = 238,265.04 : x
  2. Step 2: Convert to fraction form
    260,507.16/388,419.72 = 238,265.04/x
  3. Step 3: Cross multiply
    260,507.16x = 388,419.72 × 238,265.04
  4. Step 4: Simplify right side
    260,507.16x = 92,546,840,122.59
  5. Step 5: Solve for x
    x = 92,546,840,122.59/260,507.16
  6. Step 6: Final answer
    x = 355,256.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.