Home / 278,575.88-384,428.64-151,250.36

Finding the Fourth Proportional to 278,575.88, 384,428.64 and 151,250.36

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Solution

The fourth proportional to 278,575.88, 384,428.64 and 151,250.36 is: 208,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,575.88 : 384,428.64 = 151,250.36 : x
  2. Step 2: Convert to fraction form
    278,575.88/384,428.64 = 151,250.36/x
  3. Step 3: Cross multiply
    278,575.88x = 384,428.64 × 151,250.36
  4. Step 4: Simplify right side
    278,575.88x = 58,144,970,194.31
  5. Step 5: Solve for x
    x = 58,144,970,194.31/278,575.88
  6. Step 6: Final answer
    x = 208,722.20

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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.