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Finding the Fourth Proportional to 180,955.08, 249,717.72 and 100,394.88

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Solution

The fourth proportional to 180,955.08, 249,717.72 and 100,394.88 is: 138,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,955.08 : 249,717.72 = 100,394.88 : x
  2. Step 2: Convert to fraction form
    180,955.08/249,717.72 = 100,394.88/x
  3. Step 3: Cross multiply
    180,955.08x = 249,717.72 × 100,394.88
  4. Step 4: Simplify right side
    180,955.08x = 25,070,380,533.27
  5. Step 5: Solve for x
    x = 25,070,380,533.27/180,955.08
  6. Step 6: Final answer
    x = 138,544.77

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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.