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Finding the Fourth Proportional to 323,071.51, 484,607.13 and 86,408.04

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Solution

The fourth proportional to 323,071.51, 484,607.13 and 86,408.04 is: 129,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,071.51 : 484,607.13 = 86,408.04 : x
  2. Step 2: Convert to fraction form
    323,071.51/484,607.13 = 86,408.04/x
  3. Step 3: Cross multiply
    323,071.51x = 484,607.13 × 86,408.04
  4. Step 4: Simplify right side
    323,071.51x = 41,873,950,132.02
  5. Step 5: Solve for x
    x = 41,873,950,132.02/323,071.51
  6. Step 6: Final answer
    x = 129,612.02

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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.