Home / 278,664.83-384,561.92-151,340.42

Finding the Fourth Proportional to 278,664.83, 384,561.92 and 151,340.42

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Solution

The fourth proportional to 278,664.83, 384,561.92 and 151,340.42 is: 208,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,664.83 : 384,561.92 = 151,340.42 : x
  2. Step 2: Convert to fraction form
    278,664.83/384,561.92 = 151,340.42/x
  3. Step 3: Cross multiply
    278,664.83x = 384,561.92 × 151,340.42
  4. Step 4: Simplify right side
    278,664.83x = 58,199,762,488.81
  5. Step 5: Solve for x
    x = 58,199,762,488.81/278,664.83
  6. Step 6: Final answer
    x = 208,852.20

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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.