Home / 278,716.33-384,562.65-163,999.95

Finding the Fourth Proportional to 278,716.33, 384,562.65 and 163,999.95

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Solution

The fourth proportional to 278,716.33, 384,562.65 and 163,999.95 is: 226,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,716.33 : 384,562.65 = 163,999.95 : x
  2. Step 2: Convert to fraction form
    278,716.33/384,562.65 = 163,999.95/x
  3. Step 3: Cross multiply
    278,716.33x = 384,562.65 × 163,999.95
  4. Step 4: Simplify right side
    278,716.33x = 63,068,255,371.87
  5. Step 5: Solve for x
    x = 63,068,255,371.87/278,716.33
  6. Step 6: Final answer
    x = 226,281.16

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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.