Home / 369,917.72-510,500.91-208,778.34

Finding the Fourth Proportional to 369,917.72, 510,500.91 and 208,778.34

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Solution

The fourth proportional to 369,917.72, 510,500.91 and 208,778.34 is: 288,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,917.72 : 510,500.91 = 208,778.34 : x
  2. Step 2: Convert to fraction form
    369,917.72/510,500.91 = 208,778.34/x
  3. Step 3: Cross multiply
    369,917.72x = 510,500.91 × 208,778.34
  4. Step 4: Simplify right side
    369,917.72x = 106,581,532,558.29
  5. Step 5: Solve for x
    x = 106,581,532,558.29/369,917.72
  6. Step 6: Final answer
    x = 288,122.27

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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.