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Finding the Fourth Proportional to 471,768.30, 651,048.03 and 256,912.56

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Solution

The fourth proportional to 471,768.30, 651,048.03 and 256,912.56 is: 354,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,768.30 : 651,048.03 = 256,912.56 : x
  2. Step 2: Convert to fraction form
    471,768.30/651,048.03 = 256,912.56/x
  3. Step 3: Cross multiply
    471,768.30x = 651,048.03 × 256,912.56
  4. Step 4: Simplify right side
    471,768.30x = 167,262,416,070.26
  5. Step 5: Solve for x
    x = 167,262,416,070.26/471,768.30
  6. Step 6: Final answer
    x = 354,543.57

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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.