Home / 278,695.58-384,534.02-163,979.23

Finding the Fourth Proportional to 278,695.58, 384,534.02 and 163,979.23

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Solution

The fourth proportional to 278,695.58, 384,534.02 and 163,979.23 is: 226,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,695.58 : 384,534.02 = 163,979.23 : x
  2. Step 2: Convert to fraction form
    278,695.58/384,534.02 = 163,979.23/x
  3. Step 3: Cross multiply
    278,695.58x = 384,534.02 × 163,979.23
  4. Step 4: Simplify right side
    278,695.58x = 63,055,591,688.51
  5. Step 5: Solve for x
    x = 63,055,591,688.51/278,695.58
  6. Step 6: Final answer
    x = 226,252.57

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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.