Home / 345,681.35-518,682.40-146,048.34

Finding the Fourth Proportional to 345,681.35, 518,682.40 and 146,048.34

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Solution

The fourth proportional to 345,681.35, 518,682.40 and 146,048.34 is: 219,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,681.35 : 518,682.40 = 146,048.34 : x
  2. Step 2: Convert to fraction form
    345,681.35/518,682.40 = 146,048.34/x
  3. Step 3: Cross multiply
    345,681.35x = 518,682.40 × 146,048.34
  4. Step 4: Simplify right side
    345,681.35x = 75,752,703,507.22
  5. Step 5: Solve for x
    x = 75,752,703,507.22/345,681.35
  6. Step 6: Final answer
    x = 219,140.27

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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.