Home / 513,267.48-769,888.26-139,280.76

Finding the Fourth Proportional to 513,267.48, 769,888.26 and 139,280.76

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Solution

The fourth proportional to 513,267.48, 769,888.26 and 139,280.76 is: 208,917.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,267.48 : 769,888.26 = 139,280.76 : x
  2. Step 2: Convert to fraction form
    513,267.48/769,888.26 = 139,280.76/x
  3. Step 3: Cross multiply
    513,267.48x = 769,888.26 × 139,280.76
  4. Step 4: Simplify right side
    513,267.48x = 107,230,621,967.88
  5. Step 5: Solve for x
    x = 107,230,621,967.88/513,267.48
  6. Step 6: Final answer
    x = 208,917.62

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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.