Home / 278,835.18-384,791.79-151,510.77

Finding the Fourth Proportional to 278,835.18, 384,791.79 and 151,510.77

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Solution

The fourth proportional to 278,835.18, 384,791.79 and 151,510.77 is: 209,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,835.18 : 384,791.79 = 151,510.77 : x
  2. Step 2: Convert to fraction form
    278,835.18/384,791.79 = 151,510.77/x
  3. Step 3: Cross multiply
    278,835.18x = 384,791.79 × 151,510.77
  4. Step 4: Simplify right side
    278,835.18x = 58,300,100,960.74
  5. Step 5: Solve for x
    x = 58,300,100,960.74/278,835.18
  6. Step 6: Final answer
    x = 209,084.46

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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.