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Finding the Fourth Proportional to 180,869.10, 249,605.10 and 100,304.10

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Solution

The fourth proportional to 180,869.10, 249,605.10 and 100,304.10 is: 138,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,869.10 : 249,605.10 = 100,304.10 : x
  2. Step 2: Convert to fraction form
    180,869.10/249,605.10 = 100,304.10/x
  3. Step 3: Cross multiply
    180,869.10x = 249,605.10 × 100,304.10
  4. Step 4: Simplify right side
    180,869.10x = 25,036,414,910.91
  5. Step 5: Solve for x
    x = 25,036,414,910.91/180,869.10
  6. Step 6: Final answer
    x = 138,422.84

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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.