Home / 278,626.38-384,501-151,302.88

Finding the Fourth Proportional to 278,626.38, 384,501 and 151,302.88

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Solution

The fourth proportional to 278,626.38, 384,501 and 151,302.88 is: 208,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,626.38 : 384,501 = 151,302.88 : x
  2. Step 2: Convert to fraction form
    278,626.38/384,501 = 151,302.88/x
  3. Step 3: Cross multiply
    278,626.38x = 384,501 × 151,302.88
  4. Step 4: Simplify right side
    278,626.38x = 58,176,108,662.88
  5. Step 5: Solve for x
    x = 58,176,108,662.88/278,626.38
  6. Step 6: Final answer
    x = 208,796.13

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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.