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Finding the Fourth Proportional to 278,709.55, 384,680.55 and 183,225.13

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Solution

The fourth proportional to 278,709.55, 384,680.55 and 183,225.13 is: 252,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,709.55 : 384,680.55 = 183,225.13 : x
  2. Step 2: Convert to fraction form
    278,709.55/384,680.55 = 183,225.13/x
  3. Step 3: Cross multiply
    278,709.55x = 384,680.55 × 183,225.13
  4. Step 4: Simplify right side
    278,709.55x = 70,483,143,782.22
  5. Step 5: Solve for x
    x = 70,483,143,782.22/278,709.55
  6. Step 6: Final answer
    x = 252,891.03

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1.5x scale

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.