Home / 251,427.05-346,981.78-155,964.50

Finding the Fourth Proportional to 251,427.05, 346,981.78 and 155,964.50

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Solution

The fourth proportional to 251,427.05, 346,981.78 and 155,964.50 is: 215,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,427.05 : 346,981.78 = 155,964.50 : x
  2. Step 2: Convert to fraction form
    251,427.05/346,981.78 = 155,964.50/x
  3. Step 3: Cross multiply
    251,427.05x = 346,981.78 × 155,964.50
  4. Step 4: Simplify right side
    251,427.05x = 54,116,838,091.90
  5. Step 5: Solve for x
    x = 54,116,838,091.90/251,427.05
  6. Step 6: Final answer
    x = 215,238.73

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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.