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Finding the Fourth Proportional to 255,798.33, 353,028 and 162,728.61

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Solution

The fourth proportional to 255,798.33, 353,028 and 162,728.61 is: 224,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,798.33 : 353,028 = 162,728.61 : x
  2. Step 2: Convert to fraction form
    255,798.33/353,028 = 162,728.61/x
  3. Step 3: Cross multiply
    255,798.33x = 353,028 × 162,728.61
  4. Step 4: Simplify right side
    255,798.33x = 57,447,755,731.08
  5. Step 5: Solve for x
    x = 57,447,755,731.08/255,798.33
  6. Step 6: Final answer
    x = 224,582.22

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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.