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Finding the Fourth Proportional to 351,484.41, 485,048.75 and 190,339.64

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Solution

The fourth proportional to 351,484.41, 485,048.75 and 190,339.64 is: 262,668.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,484.41 : 485,048.75 = 190,339.64 : x
  2. Step 2: Convert to fraction form
    351,484.41/485,048.75 = 190,339.64/x
  3. Step 3: Cross multiply
    351,484.41x = 485,048.75 × 190,339.64
  4. Step 4: Simplify right side
    351,484.41x = 92,324,001,080.51
  5. Step 5: Solve for x
    x = 92,324,001,080.51/351,484.41
  6. Step 6: Final answer
    x = 262,668.84

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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.