Home / 380,811.58-525,577.86-243,049.98

Finding the Fourth Proportional to 380,811.58, 525,577.86 and 243,049.98

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Solution

The fourth proportional to 380,811.58, 525,577.86 and 243,049.98 is: 335,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,811.58 : 525,577.86 = 243,049.98 : x
  2. Step 2: Convert to fraction form
    380,811.58/525,577.86 = 243,049.98/x
  3. Step 3: Cross multiply
    380,811.58x = 525,577.86 × 243,049.98
  4. Step 4: Simplify right side
    380,811.58x = 127,741,685,214.22
  5. Step 5: Solve for x
    x = 127,741,685,214.22/380,811.58
  6. Step 6: Final answer
    x = 335,445.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.