Home / 245,721.04-339,105.95-138,298.03

Finding the Fourth Proportional to 245,721.04, 339,105.95 and 138,298.03

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Solution

The fourth proportional to 245,721.04, 339,105.95 and 138,298.03 is: 190,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,721.04 : 339,105.95 = 138,298.03 : x
  2. Step 2: Convert to fraction form
    245,721.04/339,105.95 = 138,298.03/x
  3. Step 3: Cross multiply
    245,721.04x = 339,105.95 × 138,298.03
  4. Step 4: Simplify right side
    245,721.04x = 46,897,684,154.79
  5. Step 5: Solve for x
    x = 46,897,684,154.79/245,721.04
  6. Step 6: Final answer
    x = 190,857.42

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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.