Home / 345,335.23-518,073.17-145,656.36

Finding the Fourth Proportional to 345,335.23, 518,073.17 and 145,656.36

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Solution

The fourth proportional to 345,335.23, 518,073.17 and 145,656.36 is: 218,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,335.23 : 518,073.17 = 145,656.36 : x
  2. Step 2: Convert to fraction form
    345,335.23/518,073.17 = 145,656.36/x
  3. Step 3: Cross multiply
    345,335.23x = 518,073.17 × 145,656.36
  4. Step 4: Simplify right side
    345,335.23x = 75,460,651,427.58
  5. Step 5: Solve for x
    x = 75,460,651,427.58/345,335.23
  6. Step 6: Final answer
    x = 218,514.20

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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.