Home / 278,543.20-384,142.08-224,811.04

Finding the Fourth Proportional to 278,543.20, 384,142.08 and 224,811.04

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Solution

The fourth proportional to 278,543.20, 384,142.08 and 224,811.04 is: 310,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,543.20 : 384,142.08 = 224,811.04 : x
  2. Step 2: Convert to fraction form
    278,543.20/384,142.08 = 224,811.04/x
  3. Step 3: Cross multiply
    278,543.20x = 384,142.08 × 224,811.04
  4. Step 4: Simplify right side
    278,543.20x = 86,359,380,512.56
  5. Step 5: Solve for x
    x = 86,359,380,512.56/278,543.20
  6. Step 6: Final answer
    x = 310,039.45

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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.