Home / 345,520.24-518,058.48-145,786

Finding the Fourth Proportional to 345,520.24, 518,058.48 and 145,786

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Solution

The fourth proportional to 345,520.24, 518,058.48 and 145,786 is: 218,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,520.24 : 518,058.48 = 145,786 : x
  2. Step 2: Convert to fraction form
    345,520.24/518,058.48 = 145,786/x
  3. Step 3: Cross multiply
    345,520.24x = 518,058.48 × 145,786
  4. Step 4: Simplify right side
    345,520.24x = 75,525,673,565.28
  5. Step 5: Solve for x
    x = 75,525,673,565.28/345,520.24
  6. Step 6: Final answer
    x = 218,585.38

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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.