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Finding the Fourth Proportional to 303,656.36, 455,179.70 and 103,840.03

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Solution

The fourth proportional to 303,656.36, 455,179.70 and 103,840.03 is: 155,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,656.36 : 455,179.70 = 103,840.03 : x
  2. Step 2: Convert to fraction form
    303,656.36/455,179.70 = 103,840.03/x
  3. Step 3: Cross multiply
    303,656.36x = 455,179.70 × 103,840.03
  4. Step 4: Simplify right side
    303,656.36x = 47,265,873,703.39
  5. Step 5: Solve for x
    x = 47,265,873,703.39/303,656.36
  6. Step 6: Final answer
    x = 155,655.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.