Home / 278,566.35-384,422.63-151,241.91

Finding the Fourth Proportional to 278,566.35, 384,422.63 and 151,241.91

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Solution

The fourth proportional to 278,566.35, 384,422.63 and 151,241.91 is: 208,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,566.35 : 384,422.63 = 151,241.91 : x
  2. Step 2: Convert to fraction form
    278,566.35/384,422.63 = 151,241.91/x
  3. Step 3: Cross multiply
    278,566.35x = 384,422.63 × 151,241.91
  4. Step 4: Simplify right side
    278,566.35x = 58,140,812,052.21
  5. Step 5: Solve for x
    x = 58,140,812,052.21/278,566.35
  6. Step 6: Final answer
    x = 208,714.41

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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.