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Finding the Fourth Proportional to 180,872.52, 249,619.04 and 100,326.07

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Solution

The fourth proportional to 180,872.52, 249,619.04 and 100,326.07 is: 138,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,872.52 : 249,619.04 = 100,326.07 : x
  2. Step 2: Convert to fraction form
    180,872.52/249,619.04 = 100,326.07/x
  3. Step 3: Cross multiply
    180,872.52x = 249,619.04 × 100,326.07
  4. Step 4: Simplify right side
    180,872.52x = 25,043,297,280.37
  5. Step 5: Solve for x
    x = 25,043,297,280.37/180,872.52
  6. Step 6: Final answer
    x = 138,458.28

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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.