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Finding the Fourth Proportional to 258,360.32, 356,505.36 and 149,483.36

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Solution

The fourth proportional to 258,360.32, 356,505.36 and 149,483.36 is: 206,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,360.32 : 356,505.36 = 149,483.36 : x
  2. Step 2: Convert to fraction form
    258,360.32/356,505.36 = 149,483.36/x
  3. Step 3: Cross multiply
    258,360.32x = 356,505.36 × 149,483.36
  4. Step 4: Simplify right side
    258,360.32x = 53,291,619,070.81
  5. Step 5: Solve for x
    x = 53,291,619,070.81/258,360.32
  6. Step 6: Final answer
    x = 206,268.59

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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.