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Finding the Fourth Proportional to 180,886.73, 249,624.36 and 100,321.70

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Solution

The fourth proportional to 180,886.73, 249,624.36 and 100,321.70 is: 138,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,886.73 : 249,624.36 = 100,321.70 : x
  2. Step 2: Convert to fraction form
    180,886.73/249,624.36 = 100,321.70/x
  3. Step 3: Cross multiply
    180,886.73x = 249,624.36 × 100,321.70
  4. Step 4: Simplify right side
    180,886.73x = 25,042,738,406.88
  5. Step 5: Solve for x
    x = 25,042,738,406.88/180,886.73
  6. Step 6: Final answer
    x = 138,444.31

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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.