Home / 210,924.10-291,071.37-115,428.88

Finding the Fourth Proportional to 210,924.10, 291,071.37 and 115,428.88

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Solution

The fourth proportional to 210,924.10, 291,071.37 and 115,428.88 is: 159,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,924.10 : 291,071.37 = 115,428.88 : x
  2. Step 2: Convert to fraction form
    210,924.10/291,071.37 = 115,428.88/x
  3. Step 3: Cross multiply
    210,924.10x = 291,071.37 × 115,428.88
  4. Step 4: Simplify right side
    210,924.10x = 33,598,042,239.17
  5. Step 5: Solve for x
    x = 33,598,042,239.17/210,924.10
  6. Step 6: Final answer
    x = 159,289.73

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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.