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Finding the Fourth Proportional to 245,004.60, 338,082.82 and 137,550

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Solution

The fourth proportional to 245,004.60, 338,082.82 and 137,550 is: 189,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,004.60 : 338,082.82 = 137,550 : x
  2. Step 2: Convert to fraction form
    245,004.60/338,082.82 = 137,550/x
  3. Step 3: Cross multiply
    245,004.60x = 338,082.82 × 137,550
  4. Step 4: Simplify right side
    245,004.60x = 46,503,291,547.13
  5. Step 5: Solve for x
    x = 46,503,291,547.13/245,004.60
  6. Step 6: Final answer
    x = 189,805.79

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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.