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Finding the Fourth Proportional to 278,708.55, 384,679.17 and 183,224.13

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Solution

The fourth proportional to 278,708.55, 384,679.17 and 183,224.13 is: 252,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,708.55 : 384,679.17 = 183,224.13 : x
  2. Step 2: Convert to fraction form
    278,708.55/384,679.17 = 183,224.13/x
  3. Step 3: Cross multiply
    278,708.55x = 384,679.17 × 183,224.13
  4. Step 4: Simplify right side
    278,708.55x = 70,482,506,252.37
  5. Step 5: Solve for x
    x = 70,482,506,252.37/278,708.55
  6. Step 6: Final answer
    x = 252,889.64

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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.