Home / 278,784.48-384,724.42-151,460.04

Finding the Fourth Proportional to 278,784.48, 384,724.42 and 151,460.04

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Solution

The fourth proportional to 278,784.48, 384,724.42 and 151,460.04 is: 209,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,784.48 : 384,724.42 = 151,460.04 : x
  2. Step 2: Convert to fraction form
    278,784.48/384,724.42 = 151,460.04/x
  3. Step 3: Cross multiply
    278,784.48x = 384,724.42 × 151,460.04
  4. Step 4: Simplify right side
    278,784.48x = 58,270,376,042.18
  5. Step 5: Solve for x
    x = 58,270,376,042.18/278,784.48
  6. Step 6: Final answer
    x = 209,015.85

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1.5x scale

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.