Home / 405,721.44-608,637.51-169,008.75

Finding the Fourth Proportional to 405,721.44, 608,637.51 and 169,008.75

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Solution

The fourth proportional to 405,721.44, 608,637.51 and 169,008.75 is: 253,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,721.44 : 608,637.51 = 169,008.75 : x
  2. Step 2: Convert to fraction form
    405,721.44/608,637.51 = 169,008.75/x
  3. Step 3: Cross multiply
    405,721.44x = 608,637.51 × 169,008.75
  4. Step 4: Simplify right side
    405,721.44x = 102,865,064,768.21
  5. Step 5: Solve for x
    x = 102,865,064,768.21/405,721.44
  6. Step 6: Final answer
    x = 253,536.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.