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Finding the Fourth Proportional to 272,254.20, 407,798.10 and 177,775.80

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Solution

The fourth proportional to 272,254.20, 407,798.10 and 177,775.80 is: 266,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,254.20 : 407,798.10 = 177,775.80 : x
  2. Step 2: Convert to fraction form
    272,254.20/407,798.10 = 177,775.80/x
  3. Step 3: Cross multiply
    272,254.20x = 407,798.10 × 177,775.80
  4. Step 4: Simplify right side
    272,254.20x = 72,496,633,465.98
  5. Step 5: Solve for x
    x = 72,496,633,465.98/272,254.20
  6. Step 6: Final answer
    x = 266,282.88

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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.