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Finding the Fourth Proportional to 351,695.52, 485,162.87 and 230,820.03

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Solution

The fourth proportional to 351,695.52, 485,162.87 and 230,820.03 is: 318,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,695.52 : 485,162.87 = 230,820.03 : x
  2. Step 2: Convert to fraction form
    351,695.52/485,162.87 = 230,820.03/x
  3. Step 3: Cross multiply
    351,695.52x = 485,162.87 × 230,820.03
  4. Step 4: Simplify right side
    351,695.52x = 111,985,307,054.19
  5. Step 5: Solve for x
    x = 111,985,307,054.19/351,695.52
  6. Step 6: Final answer
    x = 318,415.51

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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.