Home / 315,186.03-434,897.24-187,873.47

Finding the Fourth Proportional to 315,186.03, 434,897.24 and 187,873.47

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Solution

The fourth proportional to 315,186.03, 434,897.24 and 187,873.47 is: 259,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,186.03 : 434,897.24 = 187,873.47 : x
  2. Step 2: Convert to fraction form
    315,186.03/434,897.24 = 187,873.47/x
  3. Step 3: Cross multiply
    315,186.03x = 434,897.24 × 187,873.47
  4. Step 4: Simplify right side
    315,186.03x = 81,705,652,632.86
  5. Step 5: Solve for x
    x = 81,705,652,632.86/315,186.03
  6. Step 6: Final answer
    x = 259,229.93

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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.