Home / 253,078.25-379,428.26-153,214.38

Finding the Fourth Proportional to 253,078.25, 379,428.26 and 153,214.38

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Solution

The fourth proportional to 253,078.25, 379,428.26 and 153,214.38 is: 229,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,078.25 : 379,428.26 = 153,214.38 : x
  2. Step 2: Convert to fraction form
    253,078.25/379,428.26 = 153,214.38/x
  3. Step 3: Cross multiply
    253,078.25x = 379,428.26 × 153,214.38
  4. Step 4: Simplify right side
    253,078.25x = 58,133,864,844.31
  5. Step 5: Solve for x
    x = 58,133,864,844.31/253,078.25
  6. Step 6: Final answer
    x = 229,707.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.