Home / 278,966.88-384,976.53-151,642.17

Finding the Fourth Proportional to 278,966.88, 384,976.53 and 151,642.17

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Solution

The fourth proportional to 278,966.88, 384,976.53 and 151,642.17 is: 209,267.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,966.88 : 384,976.53 = 151,642.17 : x
  2. Step 2: Convert to fraction form
    278,966.88/384,976.53 = 151,642.17/x
  3. Step 3: Cross multiply
    278,966.88x = 384,976.53 × 151,642.17
  4. Step 4: Simplify right side
    278,966.88x = 58,378,676,408.27
  5. Step 5: Solve for x
    x = 58,378,676,408.27/278,966.88
  6. Step 6: Final answer
    x = 209,267.41

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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.