Home / 278,443.36-384,248.64-151,119.04

Finding the Fourth Proportional to 278,443.36, 384,248.64 and 151,119.04

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Solution

The fourth proportional to 278,443.36, 384,248.64 and 151,119.04 is: 208,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,443.36 : 384,248.64 = 151,119.04 : x
  2. Step 2: Convert to fraction form
    278,443.36/384,248.64 = 151,119.04/x
  3. Step 3: Cross multiply
    278,443.36x = 384,248.64 × 151,119.04
  4. Step 4: Simplify right side
    278,443.36x = 58,067,285,598.11
  5. Step 5: Solve for x
    x = 58,067,285,598.11/278,443.36
  6. Step 6: Final answer
    x = 208,542.54

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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.