Home / 210,977.62-291,149.44-115,490.36

Finding the Fourth Proportional to 210,977.62, 291,149.44 and 115,490.36

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Solution

The fourth proportional to 210,977.62, 291,149.44 and 115,490.36 is: 159,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,977.62 : 291,149.44 = 115,490.36 : x
  2. Step 2: Convert to fraction form
    210,977.62/291,149.44 = 115,490.36/x
  3. Step 3: Cross multiply
    210,977.62x = 291,149.44 × 115,490.36
  4. Step 4: Simplify right side
    210,977.62x = 33,624,953,639.40
  5. Step 5: Solve for x
    x = 33,624,953,639.40/210,977.62
  6. Step 6: Final answer
    x = 159,376.87

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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.