Home / 278,543.81-384,478.04-177,941.81

Finding the Fourth Proportional to 278,543.81, 384,478.04 and 177,941.81

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Solution

The fourth proportional to 278,543.81, 384,478.04 and 177,941.81 is: 245,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,543.81 : 384,478.04 = 177,941.81 : x
  2. Step 2: Convert to fraction form
    278,543.81/384,478.04 = 177,941.81/x
  3. Step 3: Cross multiply
    278,543.81x = 384,478.04 × 177,941.81
  4. Step 4: Simplify right side
    278,543.81x = 68,414,719,748.90
  5. Step 5: Solve for x
    x = 68,414,719,748.90/278,543.81
  6. Step 6: Final answer
    x = 245,615.65

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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.