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Finding the Fourth Proportional to 445,751.76, 614,987.76 and 254,629.80

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Solution

The fourth proportional to 445,751.76, 614,987.76 and 254,629.80 is: 351,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,751.76 : 614,987.76 = 254,629.80 : x
  2. Step 2: Convert to fraction form
    445,751.76/614,987.76 = 254,629.80/x
  3. Step 3: Cross multiply
    445,751.76x = 614,987.76 × 254,629.80
  4. Step 4: Simplify right side
    445,751.76x = 156,594,210,331.25
  5. Step 5: Solve for x
    x = 156,594,210,331.25/445,751.76
  6. Step 6: Final answer
    x = 351,303.63

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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.