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Finding the Fourth Proportional to 326,846.95, 490,295.26 and 127,081.51

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Solution

The fourth proportional to 326,846.95, 490,295.26 and 127,081.51 is: 190,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,846.95 : 490,295.26 = 127,081.51 : x
  2. Step 2: Convert to fraction form
    326,846.95/490,295.26 = 127,081.51/x
  3. Step 3: Cross multiply
    326,846.95x = 490,295.26 × 127,081.51
  4. Step 4: Simplify right side
    326,846.95x = 62,307,461,986.64
  5. Step 5: Solve for x
    x = 62,307,461,986.64/326,846.95
  6. Step 6: Final answer
    x = 190,631.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.