Home / 272,780.42-376,448.65-151,921.69

Finding the Fourth Proportional to 272,780.42, 376,448.65 and 151,921.69

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Solution

The fourth proportional to 272,780.42, 376,448.65 and 151,921.69 is: 209,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,780.42 : 376,448.65 = 151,921.69 : x
  2. Step 2: Convert to fraction form
    272,780.42/376,448.65 = 151,921.69/x
  3. Step 3: Cross multiply
    272,780.42x = 376,448.65 × 151,921.69
  4. Step 4: Simplify right side
    272,780.42x = 57,190,713,785.29
  5. Step 5: Solve for x
    x = 57,190,713,785.29/272,780.42
  6. Step 6: Final answer
    x = 209,658.43

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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.