Home / 385,300.10-577,950.96-207,890.66

Finding the Fourth Proportional to 385,300.10, 577,950.96 and 207,890.66

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Solution

The fourth proportional to 385,300.10, 577,950.96 and 207,890.66 is: 311,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,300.10 : 577,950.96 = 207,890.66 : x
  2. Step 2: Convert to fraction form
    385,300.10/577,950.96 = 207,890.66/x
  3. Step 3: Cross multiply
    385,300.10x = 577,950.96 × 207,890.66
  4. Step 4: Simplify right side
    385,300.10x = 120,150,606,522.03
  5. Step 5: Solve for x
    x = 120,150,606,522.03/385,300.10
  6. Step 6: Final answer
    x = 311,836.43

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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.