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Finding the Fourth Proportional to 326,707.02, 490,059.15 and 127,166.56

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Solution

The fourth proportional to 326,707.02, 490,059.15 and 127,166.56 is: 190,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,707.02 : 490,059.15 = 127,166.56 : x
  2. Step 2: Convert to fraction form
    326,707.02/490,059.15 = 127,166.56/x
  3. Step 3: Cross multiply
    326,707.02x = 490,059.15 × 127,166.56
  4. Step 4: Simplify right side
    326,707.02x = 62,319,136,302.02
  5. Step 5: Solve for x
    x = 62,319,136,302.02/326,707.02
  6. Step 6: Final answer
    x = 190,749.30

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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.