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Finding the Fourth Proportional to 180,531.50, 249,142.03 and 108,909.98

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Solution

The fourth proportional to 180,531.50, 249,142.03 and 108,909.98 is: 150,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,531.50 : 249,142.03 = 108,909.98 : x
  2. Step 2: Convert to fraction form
    180,531.50/249,142.03 = 108,909.98/x
  3. Step 3: Cross multiply
    180,531.50x = 249,142.03 × 108,909.98
  4. Step 4: Simplify right side
    180,531.50x = 27,134,054,322.18
  5. Step 5: Solve for x
    x = 27,134,054,322.18/180,531.50
  6. Step 6: Final answer
    x = 150,300.94

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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.