Home / 209,848.31-314,543.39-103,305.59

Finding the Fourth Proportional to 209,848.31, 314,543.39 and 103,305.59

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Solution

The fourth proportional to 209,848.31, 314,543.39 and 103,305.59 is: 154,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,848.31 : 314,543.39 = 103,305.59 : x
  2. Step 2: Convert to fraction form
    209,848.31/314,543.39 = 103,305.59/x
  3. Step 3: Cross multiply
    209,848.31x = 314,543.39 × 103,305.59
  4. Step 4: Simplify right side
    209,848.31x = 32,494,089,968.02
  5. Step 5: Solve for x
    x = 32,494,089,968.02/209,848.31
  6. Step 6: Final answer
    x = 154,845.61

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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.