Home / 278,449.84-384,261.15-151,125.43

Finding the Fourth Proportional to 278,449.84, 384,261.15 and 151,125.43

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Solution

The fourth proportional to 278,449.84, 384,261.15 and 151,125.43 is: 208,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,449.84 : 384,261.15 = 151,125.43 : x
  2. Step 2: Convert to fraction form
    278,449.84/384,261.15 = 151,125.43/x
  3. Step 3: Cross multiply
    278,449.84x = 384,261.15 × 151,125.43
  4. Step 4: Simplify right side
    278,449.84x = 58,071,631,526.04
  5. Step 5: Solve for x
    x = 58,071,631,526.04/278,449.84
  6. Step 6: Final answer
    x = 208,553.29

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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.