Home / 245,670.27-339,031.58-138,244.11

Finding the Fourth Proportional to 245,670.27, 339,031.58 and 138,244.11

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Solution

The fourth proportional to 245,670.27, 339,031.58 and 138,244.11 is: 190,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,670.27 : 339,031.58 = 138,244.11 : x
  2. Step 2: Convert to fraction form
    245,670.27/339,031.58 = 138,244.11/x
  3. Step 3: Cross multiply
    245,670.27x = 339,031.58 × 138,244.11
  4. Step 4: Simplify right side
    245,670.27x = 46,869,118,347.77
  5. Step 5: Solve for x
    x = 46,869,118,347.77/245,670.27
  6. Step 6: Final answer
    x = 190,780.59

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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.