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Finding the Fourth Proportional to 180,855.36, 249,540 and 108,246.96

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Solution

The fourth proportional to 180,855.36, 249,540 and 108,246.96 is: 149,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,855.36 : 249,540 = 108,246.96 : x
  2. Step 2: Convert to fraction form
    180,855.36/249,540 = 108,246.96/x
  3. Step 3: Cross multiply
    180,855.36x = 249,540 × 108,246.96
  4. Step 4: Simplify right side
    180,855.36x = 27,011,946,398.40
  5. Step 5: Solve for x
    x = 27,011,946,398.40/180,855.36
  6. Step 6: Final answer
    x = 149,356.63

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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.