Home / 210,890.58-291,028.99-115,397.28

Finding the Fourth Proportional to 210,890.58, 291,028.99 and 115,397.28

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Solution

The fourth proportional to 210,890.58, 291,028.99 and 115,397.28 is: 159,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,890.58 : 291,028.99 = 115,397.28 : x
  2. Step 2: Convert to fraction form
    210,890.58/291,028.99 = 115,397.28/x
  3. Step 3: Cross multiply
    210,890.58x = 291,028.99 × 115,397.28
  4. Step 4: Simplify right side
    210,890.58x = 33,583,953,847.15
  5. Step 5: Solve for x
    x = 33,583,953,847.15/210,890.58
  6. Step 6: Final answer
    x = 159,248.24

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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.