Home / 345,504.06-518,329.91-120,871.82

Finding the Fourth Proportional to 345,504.06, 518,329.91 and 120,871.82

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Solution

The fourth proportional to 345,504.06, 518,329.91 and 120,871.82 is: 181,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,504.06 : 518,329.91 = 120,871.82 : x
  2. Step 2: Convert to fraction form
    345,504.06/518,329.91 = 120,871.82/x
  3. Step 3: Cross multiply
    345,504.06x = 518,329.91 × 120,871.82
  4. Step 4: Simplify right side
    345,504.06x = 62,651,476,386.13
  5. Step 5: Solve for x
    x = 62,651,476,386.13/345,504.06
  6. Step 6: Final answer
    x = 181,333.55

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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.