Home / 278,904.56-384,446.61-255,736.04

Finding the Fourth Proportional to 278,904.56, 384,446.61 and 255,736.04

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Solution

The fourth proportional to 278,904.56, 384,446.61 and 255,736.04 is: 352,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,904.56 : 384,446.61 = 255,736.04 : x
  2. Step 2: Convert to fraction form
    278,904.56/384,446.61 = 255,736.04/x
  3. Step 3: Cross multiply
    278,904.56x = 384,446.61 × 255,736.04
  4. Step 4: Simplify right side
    278,904.56x = 98,316,851,710.59
  5. Step 5: Solve for x
    x = 98,316,851,710.59/278,904.56
  6. Step 6: Final answer
    x = 352,510.74

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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.