Home / 278,923.19-384,925.45-158,063.19

Finding the Fourth Proportional to 278,923.19, 384,925.45 and 158,063.19

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Solution

The fourth proportional to 278,923.19, 384,925.45 and 158,063.19 is: 218,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,923.19 : 384,925.45 = 158,063.19 : x
  2. Step 2: Convert to fraction form
    278,923.19/384,925.45 = 158,063.19/x
  3. Step 3: Cross multiply
    278,923.19x = 384,925.45 × 158,063.19
  4. Step 4: Simplify right side
    278,923.19x = 60,842,544,539.19
  5. Step 5: Solve for x
    x = 60,842,544,539.19/278,923.19
  6. Step 6: Final answer
    x = 218,133.69

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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.