Home / 278,977.70-384,984.68-151,656.50

Finding the Fourth Proportional to 278,977.70, 384,984.68 and 151,656.50

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Solution

The fourth proportional to 278,977.70, 384,984.68 and 151,656.50 is: 209,283.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,977.70 : 384,984.68 = 151,656.50 : x
  2. Step 2: Convert to fraction form
    278,977.70/384,984.68 = 151,656.50/x
  3. Step 3: Cross multiply
    278,977.70x = 384,984.68 × 151,656.50
  4. Step 4: Simplify right side
    278,977.70x = 58,385,429,122.42
  5. Step 5: Solve for x
    x = 58,385,429,122.42/278,977.70
  6. Step 6: Final answer
    x = 209,283.50

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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.