Home / 311,519.94-430,041.02-182,440.46

Finding the Fourth Proportional to 311,519.94, 430,041.02 and 182,440.46

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Solution

The fourth proportional to 311,519.94, 430,041.02 and 182,440.46 is: 251,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,519.94 : 430,041.02 = 182,440.46 : x
  2. Step 2: Convert to fraction form
    311,519.94/430,041.02 = 182,440.46/x
  3. Step 3: Cross multiply
    311,519.94x = 430,041.02 × 182,440.46
  4. Step 4: Simplify right side
    311,519.94x = 78,456,883,038.87
  5. Step 5: Solve for x
    x = 78,456,883,038.87/311,519.94
  6. Step 6: Final answer
    x = 251,851.88

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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.