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Finding the Fourth Proportional to 539,698.40, 808,899.60 and 223,992.80

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Solution

The fourth proportional to 539,698.40, 808,899.60 and 223,992.80 is: 335,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,698.40 : 808,899.60 = 223,992.80 : x
  2. Step 2: Convert to fraction form
    539,698.40/808,899.60 = 223,992.80/x
  3. Step 3: Cross multiply
    539,698.40x = 808,899.60 × 223,992.80
  4. Step 4: Simplify right side
    539,698.40x = 181,187,686,322.88
  5. Step 5: Solve for x
    x = 181,187,686,322.88/539,698.40
  6. Step 6: Final answer
    x = 335,720.26

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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.