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Finding the Fourth Proportional to 380,700.81, 525,367.08 and 227,745.45

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Solution

The fourth proportional to 380,700.81, 525,367.08 and 227,745.45 is: 314,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,700.81 : 525,367.08 = 227,745.45 : x
  2. Step 2: Convert to fraction form
    380,700.81/525,367.08 = 227,745.45/x
  3. Step 3: Cross multiply
    380,700.81x = 525,367.08 × 227,745.45
  4. Step 4: Simplify right side
    380,700.81x = 119,649,962,049.79
  5. Step 5: Solve for x
    x = 119,649,962,049.79/380,700.81
  6. Step 6: Final answer
    x = 314,288.70

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1.5x scale

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.