Home / 278,678.48-384,569.98-151,351.34

Finding the Fourth Proportional to 278,678.48, 384,569.98 and 151,351.34

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Solution

The fourth proportional to 278,678.48, 384,569.98 and 151,351.34 is: 208,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,678.48 : 384,569.98 = 151,351.34 : x
  2. Step 2: Convert to fraction form
    278,678.48/384,569.98 = 151,351.34/x
  3. Step 3: Cross multiply
    278,678.48x = 384,569.98 × 151,351.34
  4. Step 4: Simplify right side
    278,678.48x = 58,205,179,495.55
  5. Step 5: Solve for x
    x = 58,205,179,495.55/278,678.48
  6. Step 6: Final answer
    x = 208,861.41

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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.