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Finding the Fourth Proportional to 368,468.80, 552,994.80 and 143,936.80

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Solution

The fourth proportional to 368,468.80, 552,994.80 and 143,936.80 is: 216,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,468.80 : 552,994.80 = 143,936.80 : x
  2. Step 2: Convert to fraction form
    368,468.80/552,994.80 = 143,936.80/x
  3. Step 3: Cross multiply
    368,468.80x = 552,994.80 × 143,936.80
  4. Step 4: Simplify right side
    368,468.80x = 79,596,301,928.64
  5. Step 5: Solve for x
    x = 79,596,301,928.64/368,468.80
  6. Step 6: Final answer
    x = 216,019.11

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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.