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Finding the Fourth Proportional to 245,459.34, 338,735.87 and 136,565.28

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Solution

The fourth proportional to 245,459.34, 338,735.87 and 136,565.28 is: 188,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,459.34 : 338,735.87 = 136,565.28 : x
  2. Step 2: Convert to fraction form
    245,459.34/338,735.87 = 136,565.28/x
  3. Step 3: Cross multiply
    245,459.34x = 338,735.87 × 136,565.28
  4. Step 4: Simplify right side
    245,459.34x = 46,259,558,249.77
  5. Step 5: Solve for x
    x = 46,259,558,249.77/245,459.34
  6. Step 6: Final answer
    x = 188,461.19

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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.