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Finding the Fourth Proportional to 445,129.55, 614,308.91 and 251,470.08

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Solution

The fourth proportional to 445,129.55, 614,308.91 and 251,470.08 is: 347,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,129.55 : 614,308.91 = 251,470.08 : x
  2. Step 2: Convert to fraction form
    445,129.55/614,308.91 = 251,470.08/x
  3. Step 3: Cross multiply
    445,129.55x = 614,308.91 × 251,470.08
  4. Step 4: Simplify right side
    445,129.55x = 154,480,309,485.06
  5. Step 5: Solve for x
    x = 154,480,309,485.06/445,129.55
  6. Step 6: Final answer
    x = 347,045.73

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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.