Home / 392,271.12-541,188.18-239,256.36

Finding the Fourth Proportional to 392,271.12, 541,188.18 and 239,256.36

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Solution

The fourth proportional to 392,271.12, 541,188.18 and 239,256.36 is: 330,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,271.12 : 541,188.18 = 239,256.36 : x
  2. Step 2: Convert to fraction form
    392,271.12/541,188.18 = 239,256.36/x
  3. Step 3: Cross multiply
    392,271.12x = 541,188.18 × 239,256.36
  4. Step 4: Simplify right side
    392,271.12x = 129,482,714,021.83
  5. Step 5: Solve for x
    x = 129,482,714,021.83/392,271.12
  6. Step 6: Final answer
    x = 330,084.75

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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.