Home / 210,821.16-290,932.83-115,327.92

Finding the Fourth Proportional to 210,821.16, 290,932.83 and 115,327.92

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Solution

The fourth proportional to 210,821.16, 290,932.83 and 115,327.92 is: 159,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,821.16 : 290,932.83 = 115,327.92 : x
  2. Step 2: Convert to fraction form
    210,821.16/290,932.83 = 115,327.92/x
  3. Step 3: Cross multiply
    210,821.16x = 290,932.83 × 115,327.92
  4. Step 4: Simplify right side
    210,821.16x = 33,552,678,143.61
  5. Step 5: Solve for x
    x = 33,552,678,143.61/210,821.16
  6. Step 6: Final answer
    x = 159,152.33

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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.