Home / 407,288.42-562,031.01-225,988.86

Finding the Fourth Proportional to 407,288.42, 562,031.01 and 225,988.86

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Solution

The fourth proportional to 407,288.42, 562,031.01 and 225,988.86 is: 311,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,288.42 : 562,031.01 = 225,988.86 : x
  2. Step 2: Convert to fraction form
    407,288.42/562,031.01 = 225,988.86/x
  3. Step 3: Cross multiply
    407,288.42x = 562,031.01 × 225,988.86
  4. Step 4: Simplify right side
    407,288.42x = 127,012,747,234.55
  5. Step 5: Solve for x
    x = 127,012,747,234.55/407,288.42
  6. Step 6: Final answer
    x = 311,849.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.