Home / 345,574.10-518,324.30-120,938.83

Finding the Fourth Proportional to 345,574.10, 518,324.30 and 120,938.83

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Solution

The fourth proportional to 345,574.10, 518,324.30 and 120,938.83 is: 181,395.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,574.10 : 518,324.30 = 120,938.83 : x
  2. Step 2: Convert to fraction form
    345,574.10/518,324.30 = 120,938.83/x
  3. Step 3: Cross multiply
    345,574.10x = 518,324.30 × 120,938.83
  4. Step 4: Simplify right side
    345,574.10x = 62,685,531,810.95
  5. Step 5: Solve for x
    x = 62,685,531,810.95/345,574.10
  6. Step 6: Final answer
    x = 181,395.34

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1.5x scale

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.