Home / 302,112.78-453,206.07-102,490.26

Finding the Fourth Proportional to 302,112.78, 453,206.07 and 102,490.26

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Solution

The fourth proportional to 302,112.78, 453,206.07 and 102,490.26 is: 153,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,112.78 : 453,206.07 = 102,490.26 : x
  2. Step 2: Convert to fraction form
    302,112.78/453,206.07 = 102,490.26/x
  3. Step 3: Cross multiply
    302,112.78x = 453,206.07 × 102,490.26
  4. Step 4: Simplify right side
    302,112.78x = 46,449,207,947.88
  5. Step 5: Solve for x
    x = 46,449,207,947.88/302,112.78
  6. Step 6: Final answer
    x = 153,747.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.