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Finding the Fourth Proportional to 225,483, 311,176.26 and 124,881

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Solution

The fourth proportional to 225,483, 311,176.26 and 124,881 is: 172,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,483 : 311,176.26 = 124,881 : x
  2. Step 2: Convert to fraction form
    225,483/311,176.26 = 124,881/x
  3. Step 3: Cross multiply
    225,483x = 311,176.26 × 124,881
  4. Step 4: Simplify right side
    225,483x = 38,860,002,525.06
  5. Step 5: Solve for x
    x = 38,860,002,525.06/225,483
  6. Step 6: Final answer
    x = 172,341.16

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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.