Home / 258,342.51-356,511.06-145,165.26

Finding the Fourth Proportional to 258,342.51, 356,511.06 and 145,165.26

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Solution

The fourth proportional to 258,342.51, 356,511.06 and 145,165.26 is: 200,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,342.51 : 356,511.06 = 145,165.26 : x
  2. Step 2: Convert to fraction form
    258,342.51/356,511.06 = 145,165.26/x
  3. Step 3: Cross multiply
    258,342.51x = 356,511.06 × 145,165.26
  4. Step 4: Simplify right side
    258,342.51x = 51,753,020,717.78
  5. Step 5: Solve for x
    x = 51,753,020,717.78/258,342.51
  6. Step 6: Final answer
    x = 200,327.16

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1.5x scale

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.