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Finding the Fourth Proportional to 180,898.80, 249,622.56 and 100,324.92

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Solution

The fourth proportional to 180,898.80, 249,622.56 and 100,324.92 is: 138,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,898.80 : 249,622.56 = 100,324.92 : x
  2. Step 2: Convert to fraction form
    180,898.80/249,622.56 = 100,324.92/x
  3. Step 3: Cross multiply
    180,898.80x = 249,622.56 × 100,324.92
  4. Step 4: Simplify right side
    180,898.80x = 25,043,363,362.20
  5. Step 5: Solve for x
    x = 25,043,363,362.20/180,898.80
  6. Step 6: Final answer
    x = 138,438.53

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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.