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Finding the Fourth Proportional to 180,901.20, 249,641.28 and 100,328.88

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Solution

The fourth proportional to 180,901.20, 249,641.28 and 100,328.88 is: 138,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,901.20 : 249,641.28 = 100,328.88 : x
  2. Step 2: Convert to fraction form
    180,901.20/249,641.28 = 100,328.88/x
  3. Step 3: Cross multiply
    180,901.20x = 249,641.28 × 100,328.88
  4. Step 4: Simplify right side
    180,901.20x = 25,046,230,024.17
  5. Step 5: Solve for x
    x = 25,046,230,024.17/180,901.20
  6. Step 6: Final answer
    x = 138,452.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.