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Finding the Fourth Proportional to 392,004.76, 540,900.99 and 230,891.89

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Solution

The fourth proportional to 392,004.76, 540,900.99 and 230,891.89 is: 318,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,004.76 : 540,900.99 = 230,891.89 : x
  2. Step 2: Convert to fraction form
    392,004.76/540,900.99 = 230,891.89/x
  3. Step 3: Cross multiply
    392,004.76x = 540,900.99 × 230,891.89
  4. Step 4: Simplify right side
    392,004.76x = 124,889,649,179.47
  5. Step 5: Solve for x
    x = 124,889,649,179.47/392,004.76
  6. Step 6: Final answer
    x = 318,592.18

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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.