Home / 278,471.04-384,279.74-151,143.92

Finding the Fourth Proportional to 278,471.04, 384,279.74 and 151,143.92

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Solution

The fourth proportional to 278,471.04, 384,279.74 and 151,143.92 is: 208,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,471.04 : 384,279.74 = 151,143.92 : x
  2. Step 2: Convert to fraction form
    278,471.04/384,279.74 = 151,143.92/x
  3. Step 3: Cross multiply
    278,471.04x = 384,279.74 × 151,143.92
  4. Step 4: Simplify right side
    278,471.04x = 58,081,546,280.18
  5. Step 5: Solve for x
    x = 58,081,546,280.18/278,471.04
  6. Step 6: Final answer
    x = 208,573.02

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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.