Home / 304,786.74-420,569.78-175,723.77

Finding the Fourth Proportional to 304,786.74, 420,569.78 and 175,723.77

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Solution

The fourth proportional to 304,786.74, 420,569.78 and 175,723.77 is: 242,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,786.74 : 420,569.78 = 175,723.77 : x
  2. Step 2: Convert to fraction form
    304,786.74/420,569.78 = 175,723.77/x
  3. Step 3: Cross multiply
    304,786.74x = 420,569.78 × 175,723.77
  4. Step 4: Simplify right side
    304,786.74x = 73,904,106,411.05
  5. Step 5: Solve for x
    x = 73,904,106,411.05/304,786.74
  6. Step 6: Final answer
    x = 242,478.09

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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.