Home / 385,150.98-577,974.32-207,780.42

Finding the Fourth Proportional to 385,150.98, 577,974.32 and 207,780.42

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Solution

The fourth proportional to 385,150.98, 577,974.32 and 207,780.42 is: 311,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,150.98 : 577,974.32 = 207,780.42 : x
  2. Step 2: Convert to fraction form
    385,150.98/577,974.32 = 207,780.42/x
  3. Step 3: Cross multiply
    385,150.98x = 577,974.32 × 207,780.42
  4. Step 4: Simplify right side
    385,150.98x = 120,091,744,866.41
  5. Step 5: Solve for x
    x = 120,091,744,866.41/385,150.98
  6. Step 6: Final answer
    x = 311,804.34

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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.