Home / 205,921.28-308,872.60-56,161.60

Finding the Fourth Proportional to 205,921.28, 308,872.60 and 56,161.60

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Solution

The fourth proportional to 205,921.28, 308,872.60 and 56,161.60 is: 84,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,921.28 : 308,872.60 = 56,161.60 : x
  2. Step 2: Convert to fraction form
    205,921.28/308,872.60 = 56,161.60/x
  3. Step 3: Cross multiply
    205,921.28x = 308,872.60 × 56,161.60
  4. Step 4: Simplify right side
    205,921.28x = 17,346,779,412.16
  5. Step 5: Solve for x
    x = 17,346,779,412.16/205,921.28
  6. Step 6: Final answer
    x = 84,239.86

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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.