Home / 279,258.69-385,380.93-151,934.38

Finding the Fourth Proportional to 279,258.69, 385,380.93 and 151,934.38

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Solution

The fourth proportional to 279,258.69, 385,380.93 and 151,934.38 is: 209,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,258.69 : 385,380.93 = 151,934.38 : x
  2. Step 2: Convert to fraction form
    279,258.69/385,380.93 = 151,934.38/x
  3. Step 3: Cross multiply
    279,258.69x = 385,380.93 × 151,934.38
  4. Step 4: Simplify right side
    279,258.69x = 58,552,612,663.37
  5. Step 5: Solve for x
    x = 58,552,612,663.37/279,258.69
  6. Step 6: Final answer
    x = 209,671.59

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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.