Home / 273,983.58-378,089.64-153,125.28

Finding the Fourth Proportional to 273,983.58, 378,089.64 and 153,125.28

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Solution

The fourth proportional to 273,983.58, 378,089.64 and 153,125.28 is: 211,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,983.58 : 378,089.64 = 153,125.28 : x
  2. Step 2: Convert to fraction form
    273,983.58/378,089.64 = 153,125.28/x
  3. Step 3: Cross multiply
    273,983.58x = 378,089.64 × 153,125.28
  4. Step 4: Simplify right side
    273,983.58x = 57,895,081,990.10
  5. Step 5: Solve for x
    x = 57,895,081,990.10/273,983.58
  6. Step 6: Final answer
    x = 211,308.58

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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.