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Finding the Fourth Proportional to 301,607.80, 452,379.30 and 79,991.80

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Solution

The fourth proportional to 301,607.80, 452,379.30 and 79,991.80 is: 119,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,607.80 : 452,379.30 = 79,991.80 : x
  2. Step 2: Convert to fraction form
    301,607.80/452,379.30 = 79,991.80/x
  3. Step 3: Cross multiply
    301,607.80x = 452,379.30 × 79,991.80
  4. Step 4: Simplify right side
    301,607.80x = 36,186,634,489.74
  5. Step 5: Solve for x
    x = 36,186,634,489.74/301,607.80
  6. Step 6: Final answer
    x = 119,979.11

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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.