Home / 385,083.12-577,143-185,350.08

Finding the Fourth Proportional to 385,083.12, 577,143 and 185,350.08

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Solution

The fourth proportional to 385,083.12, 577,143 and 185,350.08 is: 277,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,083.12 : 577,143 = 185,350.08 : x
  2. Step 2: Convert to fraction form
    385,083.12/577,143 = 185,350.08/x
  3. Step 3: Cross multiply
    385,083.12x = 577,143 × 185,350.08
  4. Step 4: Simplify right side
    385,083.12x = 106,973,501,221.44
  5. Step 5: Solve for x
    x = 106,973,501,221.44/385,083.12
  6. Step 6: Final answer
    x = 277,793.28

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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.