Home / 278,421.66-384,023.31-255,525.27

Finding the Fourth Proportional to 278,421.66, 384,023.31 and 255,525.27

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Solution

The fourth proportional to 278,421.66, 384,023.31 and 255,525.27 is: 352,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,421.66 : 384,023.31 = 255,525.27 : x
  2. Step 2: Convert to fraction form
    278,421.66/384,023.31 = 255,525.27/x
  3. Step 3: Cross multiply
    278,421.66x = 384,023.31 × 255,525.27
  4. Step 4: Simplify right side
    278,421.66x = 98,127,659,974.04
  5. Step 5: Solve for x
    x = 98,127,659,974.04/278,421.66
  6. Step 6: Final answer
    x = 352,442.62

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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.