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Finding the Fourth Proportional to 270,860.18, 373,786.32 and 156,138.18

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Solution

The fourth proportional to 270,860.18, 373,786.32 and 156,138.18 is: 215,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,860.18 : 373,786.32 = 156,138.18 : x
  2. Step 2: Convert to fraction form
    270,860.18/373,786.32 = 156,138.18/x
  3. Step 3: Cross multiply
    270,860.18x = 373,786.32 × 156,138.18
  4. Step 4: Simplify right side
    270,860.18x = 58,362,316,560.93
  5. Step 5: Solve for x
    x = 58,362,316,560.93/270,860.18
  6. Step 6: Final answer
    x = 215,470.27

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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.