Home / 210,519.19-290,484.79-119,878.57

Finding the Fourth Proportional to 210,519.19, 290,484.79 and 119,878.57

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Solution

The fourth proportional to 210,519.19, 290,484.79 and 119,878.57 is: 165,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,519.19 : 290,484.79 = 119,878.57 : x
  2. Step 2: Convert to fraction form
    210,519.19/290,484.79 = 119,878.57/x
  3. Step 3: Cross multiply
    210,519.19x = 290,484.79 × 119,878.57
  4. Step 4: Simplify right side
    210,519.19x = 34,822,901,231.95
  5. Step 5: Solve for x
    x = 34,822,901,231.95/210,519.19
  6. Step 6: Final answer
    x = 165,414.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.