Home / 304,946.18-420,819.43-168,978.93

Finding the Fourth Proportional to 304,946.18, 420,819.43 and 168,978.93

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Solution

The fourth proportional to 304,946.18, 420,819.43 and 168,978.93 is: 233,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,946.18 : 420,819.43 = 168,978.93 : x
  2. Step 2: Convert to fraction form
    304,946.18/420,819.43 = 168,978.93/x
  3. Step 3: Cross multiply
    304,946.18x = 420,819.43 × 168,978.93
  4. Step 4: Simplify right side
    304,946.18x = 71,109,617,004.61
  5. Step 5: Solve for x
    x = 71,109,617,004.61/304,946.18
  6. Step 6: Final answer
    x = 233,187.43

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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.