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Finding the Fourth Proportional to 218,498.36, 301,533.39 and 123,008.49

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Solution

The fourth proportional to 218,498.36, 301,533.39 and 123,008.49 is: 169,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,498.36 : 301,533.39 = 123,008.49 : x
  2. Step 2: Convert to fraction form
    218,498.36/301,533.39 = 123,008.49/x
  3. Step 3: Cross multiply
    218,498.36x = 301,533.39 × 123,008.49
  4. Step 4: Simplify right side
    218,498.36x = 37,091,166,988.48
  5. Step 5: Solve for x
    x = 37,091,166,988.48/218,498.36
  6. Step 6: Final answer
    x = 169,754.90

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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.