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Finding the Fourth Proportional to 426,160.80, 638,803.80 and 248,576.40

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Solution

The fourth proportional to 426,160.80, 638,803.80 and 248,576.40 is: 372,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,160.80 : 638,803.80 = 248,576.40 : x
  2. Step 2: Convert to fraction form
    426,160.80/638,803.80 = 248,576.40/x
  3. Step 3: Cross multiply
    426,160.80x = 638,803.80 × 248,576.40
  4. Step 4: Simplify right side
    426,160.80x = 158,791,548,910.32
  5. Step 5: Solve for x
    x = 158,791,548,910.32/426,160.80
  6. Step 6: Final answer
    x = 372,609.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.