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Finding the Fourth Proportional to 207,901.53, 286,977.84 and 123,018.39

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Solution

The fourth proportional to 207,901.53, 286,977.84 and 123,018.39 is: 169,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,901.53 : 286,977.84 = 123,018.39 : x
  2. Step 2: Convert to fraction form
    207,901.53/286,977.84 = 123,018.39/x
  3. Step 3: Cross multiply
    207,901.53x = 286,977.84 × 123,018.39
  4. Step 4: Simplify right side
    207,901.53x = 35,303,551,842.48
  5. Step 5: Solve for x
    x = 35,303,551,842.48/207,901.53
  6. Step 6: Final answer
    x = 169,809.00

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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.