Home / 385,333.06-577,474.35-185,638.90

Finding the Fourth Proportional to 385,333.06, 577,474.35 and 185,638.90

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Solution

The fourth proportional to 385,333.06, 577,474.35 and 185,638.90 is: 278,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,333.06 : 577,474.35 = 185,638.90 : x
  2. Step 2: Convert to fraction form
    385,333.06/577,474.35 = 185,638.90/x
  3. Step 3: Cross multiply
    385,333.06x = 577,474.35 × 185,638.90
  4. Step 4: Simplify right side
    385,333.06x = 107,201,703,112.22
  5. Step 5: Solve for x
    x = 107,201,703,112.22/385,333.06
  6. Step 6: Final answer
    x = 278,205.31

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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.