Home / 278,709.20-384,623.16-151,384.88

Finding the Fourth Proportional to 278,709.20, 384,623.16 and 151,384.88

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Solution

The fourth proportional to 278,709.20, 384,623.16 and 151,384.88 is: 208,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,709.20 : 384,623.16 = 151,384.88 : x
  2. Step 2: Convert to fraction form
    278,709.20/384,623.16 = 151,384.88/x
  3. Step 3: Cross multiply
    278,709.20x = 384,623.16 × 151,384.88
  4. Step 4: Simplify right side
    278,709.20x = 58,226,130,921.82
  5. Step 5: Solve for x
    x = 58,226,130,921.82/278,709.20
  6. Step 6: Final answer
    x = 208,913.56

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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.