Home / 340,579.26-510,868.98-140,679.90

Finding the Fourth Proportional to 340,579.26, 510,868.98 and 140,679.90

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Solution

The fourth proportional to 340,579.26, 510,868.98 and 140,679.90 is: 211,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,579.26 : 510,868.98 = 140,679.90 : x
  2. Step 2: Convert to fraction form
    340,579.26/510,868.98 = 140,679.90/x
  3. Step 3: Cross multiply
    340,579.26x = 510,868.98 × 140,679.90
  4. Step 4: Simplify right side
    340,579.26x = 71,868,997,019.50
  5. Step 5: Solve for x
    x = 71,868,997,019.50/340,579.26
  6. Step 6: Final answer
    x = 211,019.89

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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.