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Finding the Fourth Proportional to 270,053.88, 372,662.90 and 155,323.86

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Solution

The fourth proportional to 270,053.88, 372,662.90 and 155,323.86 is: 214,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,053.88 : 372,662.90 = 155,323.86 : x
  2. Step 2: Convert to fraction form
    270,053.88/372,662.90 = 155,323.86/x
  3. Step 3: Cross multiply
    270,053.88x = 372,662.90 × 155,323.86
  4. Step 4: Simplify right side
    270,053.88x = 57,883,440,106.79
  5. Step 5: Solve for x
    x = 57,883,440,106.79/270,053.88
  6. Step 6: Final answer
    x = 214,340.34

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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.