Home / 258,252.48-387,401.04-71,263.98

Finding the Fourth Proportional to 258,252.48, 387,401.04 and 71,263.98

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Solution

The fourth proportional to 258,252.48, 387,401.04 and 71,263.98 is: 106,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,252.48 : 387,401.04 = 71,263.98 : x
  2. Step 2: Convert to fraction form
    258,252.48/387,401.04 = 71,263.98/x
  3. Step 3: Cross multiply
    258,252.48x = 387,401.04 × 71,263.98
  4. Step 4: Simplify right side
    258,252.48x = 27,607,739,966.54
  5. Step 5: Solve for x
    x = 27,607,739,966.54/258,252.48
  6. Step 6: Final answer
    x = 106,902.13

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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.