Home / 245,691.45-339,053.04-138,263.28

Finding the Fourth Proportional to 245,691.45, 339,053.04 and 138,263.28

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Solution

The fourth proportional to 245,691.45, 339,053.04 and 138,263.28 is: 190,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,691.45 : 339,053.04 = 138,263.28 : x
  2. Step 2: Convert to fraction form
    245,691.45/339,053.04 = 138,263.28/x
  3. Step 3: Cross multiply
    245,691.45x = 339,053.04 × 138,263.28
  4. Step 4: Simplify right side
    245,691.45x = 46,878,585,404.37
  5. Step 5: Solve for x
    x = 46,878,585,404.37/245,691.45
  6. Step 6: Final answer
    x = 190,802.67

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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.