Home / 210,508.13-290,497.82-115,012.77

Finding the Fourth Proportional to 210,508.13, 290,497.82 and 115,012.77

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Solution

The fourth proportional to 210,508.13, 290,497.82 and 115,012.77 is: 158,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,508.13 : 290,497.82 = 115,012.77 : x
  2. Step 2: Convert to fraction form
    210,508.13/290,497.82 = 115,012.77/x
  3. Step 3: Cross multiply
    210,508.13x = 290,497.82 × 115,012.77
  4. Step 4: Simplify right side
    210,508.13x = 33,410,958,957.16
  5. Step 5: Solve for x
    x = 33,410,958,957.16/210,508.13
  6. Step 6: Final answer
    x = 158,715.77

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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.