Home / 278,921.13-384,913.70-151,597.04

Finding the Fourth Proportional to 278,921.13, 384,913.70 and 151,597.04

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Solution

The fourth proportional to 278,921.13, 384,913.70 and 151,597.04 is: 209,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,921.13 : 384,913.70 = 151,597.04 : x
  2. Step 2: Convert to fraction form
    278,921.13/384,913.70 = 151,597.04/x
  3. Step 3: Cross multiply
    278,921.13x = 384,913.70 × 151,597.04
  4. Step 4: Simplify right side
    278,921.13x = 58,351,774,892.89
  5. Step 5: Solve for x
    x = 58,351,774,892.89/278,921.13
  6. Step 6: Final answer
    x = 209,205.29

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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.