Home / 385,309.10-577,964.46-207,899.66

Finding the Fourth Proportional to 385,309.10, 577,964.46 and 207,899.66

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Solution

The fourth proportional to 385,309.10, 577,964.46 and 207,899.66 is: 311,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,309.10 : 577,964.46 = 207,899.66 : x
  2. Step 2: Convert to fraction form
    385,309.10/577,964.46 = 207,899.66/x
  3. Step 3: Cross multiply
    385,309.10x = 577,964.46 × 207,899.66
  4. Step 4: Simplify right side
    385,309.10x = 120,158,614,726.08
  5. Step 5: Solve for x
    x = 120,158,614,726.08/385,309.10
  6. Step 6: Final answer
    x = 311,849.93

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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.