Home / 278,491.55-384,320.03-151,168.05

Finding the Fourth Proportional to 278,491.55, 384,320.03 and 151,168.05

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Solution

The fourth proportional to 278,491.55, 384,320.03 and 151,168.05 is: 208,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,491.55 : 384,320.03 = 151,168.05 : x
  2. Step 2: Convert to fraction form
    278,491.55/384,320.03 = 151,168.05/x
  3. Step 3: Cross multiply
    278,491.55x = 384,320.03 × 151,168.05
  4. Step 4: Simplify right side
    278,491.55x = 58,096,908,755.20
  5. Step 5: Solve for x
    x = 58,096,908,755.20/278,491.55
  6. Step 6: Final answer
    x = 208,612.83

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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.