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Finding the Fourth Proportional to 270,708.64, 373,586.74 and 155,978.39

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Solution

The fourth proportional to 270,708.64, 373,586.74 and 155,978.39 is: 215,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,708.64 : 373,586.74 = 155,978.39 : x
  2. Step 2: Convert to fraction form
    270,708.64/373,586.74 = 155,978.39/x
  3. Step 3: Cross multiply
    270,708.64x = 373,586.74 × 155,978.39
  4. Step 4: Simplify right side
    270,708.64x = 58,271,458,774.57
  5. Step 5: Solve for x
    x = 58,271,458,774.57/270,708.64
  6. Step 6: Final answer
    x = 215,255.26

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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.