Home / 210,832.61-290,955.85-115,339.30

Finding the Fourth Proportional to 210,832.61, 290,955.85 and 115,339.30

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Solution

The fourth proportional to 210,832.61, 290,955.85 and 115,339.30 is: 159,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,832.61 : 290,955.85 = 115,339.30 : x
  2. Step 2: Convert to fraction form
    210,832.61/290,955.85 = 115,339.30/x
  3. Step 3: Cross multiply
    210,832.61x = 290,955.85 × 115,339.30
  4. Step 4: Simplify right side
    210,832.61x = 33,558,644,145.25
  5. Step 5: Solve for x
    x = 33,558,644,145.25/210,832.61
  6. Step 6: Final answer
    x = 159,171.98

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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.