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Finding the Fourth Proportional to 180,880.02, 249,615 and 100,314.99

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Solution

The fourth proportional to 180,880.02, 249,615 and 100,314.99 is: 138,435.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,880.02 : 249,615 = 100,314.99 : x
  2. Step 2: Convert to fraction form
    180,880.02/249,615 = 100,314.99/x
  3. Step 3: Cross multiply
    180,880.02x = 249,615 × 100,314.99
  4. Step 4: Simplify right side
    180,880.02x = 25,040,126,228.85
  5. Step 5: Solve for x
    x = 25,040,126,228.85/180,880.02
  6. Step 6: Final answer
    x = 138,435.00

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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.