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Finding the Fourth Proportional to 245,360.19, 338,602.54 and 149,919.51

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Solution

The fourth proportional to 245,360.19, 338,602.54 and 149,919.51 is: 206,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,360.19 : 338,602.54 = 149,919.51 : x
  2. Step 2: Convert to fraction form
    245,360.19/338,602.54 = 149,919.51/x
  3. Step 3: Cross multiply
    245,360.19x = 338,602.54 × 149,919.51
  4. Step 4: Simplify right side
    245,360.19x = 50,763,126,881.56
  5. Step 5: Solve for x
    x = 50,763,126,881.56/245,360.19
  6. Step 6: Final answer
    x = 206,892.27

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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.