Home / 340,260.48-510,390.72-90,936

Finding the Fourth Proportional to 340,260.48, 510,390.72 and 90,936

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Solution

The fourth proportional to 340,260.48, 510,390.72 and 90,936 is: 136,404

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,260.48 : 510,390.72 = 90,936 : x
  2. Step 2: Convert to fraction form
    340,260.48/510,390.72 = 90,936/x
  3. Step 3: Cross multiply
    340,260.48x = 510,390.72 × 90,936
  4. Step 4: Simplify right side
    340,260.48x = 46,412,890,513.92
  5. Step 5: Solve for x
    x = 46,412,890,513.92/340,260.48
  6. Step 6: Final answer
    x = 136,404

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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.