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Finding the Fourth Proportional to 207,534.56, 286,398 and 122,693.60

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Solution

The fourth proportional to 207,534.56, 286,398 and 122,693.60 is: 169,317.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,534.56 : 286,398 = 122,693.60 : x
  2. Step 2: Convert to fraction form
    207,534.56/286,398 = 122,693.60/x
  3. Step 3: Cross multiply
    207,534.56x = 286,398 × 122,693.60
  4. Step 4: Simplify right side
    207,534.56x = 35,139,201,652.80
  5. Step 5: Solve for x
    x = 35,139,201,652.80/207,534.56
  6. Step 6: Final answer
    x = 169,317.35

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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.