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Finding the Fourth Proportional to 272,479.80, 376,022.12 and 151,628.88

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Solution

The fourth proportional to 272,479.80, 376,022.12 and 151,628.88 is: 209,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,479.80 : 376,022.12 = 151,628.88 : x
  2. Step 2: Convert to fraction form
    272,479.80/376,022.12 = 151,628.88/x
  3. Step 3: Cross multiply
    272,479.80x = 376,022.12 × 151,628.88
  4. Step 4: Simplify right side
    272,479.80x = 57,015,812,910.83
  5. Step 5: Solve for x
    x = 57,015,812,910.83/272,479.80
  6. Step 6: Final answer
    x = 209,247.85

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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.