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Finding the Fourth Proportional to 207,552.56, 286,429.56 and 122,742.32

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Solution

The fourth proportional to 207,552.56, 286,429.56 and 122,742.32 is: 169,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,552.56 : 286,429.56 = 122,742.32 : x
  2. Step 2: Convert to fraction form
    207,552.56/286,429.56 = 122,742.32/x
  3. Step 3: Cross multiply
    207,552.56x = 286,429.56 × 122,742.32
  4. Step 4: Simplify right side
    207,552.56x = 35,157,028,710.98
  5. Step 5: Solve for x
    x = 35,157,028,710.98/207,552.56
  6. Step 6: Final answer
    x = 169,388.56

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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.