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Finding the Fourth Proportional to 259,392.47, 358,128.21 and 162,728.86

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Solution

The fourth proportional to 259,392.47, 358,128.21 and 162,728.86 is: 224,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,392.47 : 358,128.21 = 162,728.86 : x
  2. Step 2: Convert to fraction form
    259,392.47/358,128.21 = 162,728.86/x
  3. Step 3: Cross multiply
    259,392.47x = 358,128.21 × 162,728.86
  4. Step 4: Simplify right side
    259,392.47x = 58,277,793,556.50
  5. Step 5: Solve for x
    x = 58,277,793,556.50/259,392.47
  6. Step 6: Final answer
    x = 224,670.34

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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.