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Finding the Fourth Proportional to 249,884.57, 374,826.58 and 81,404.64

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Solution

The fourth proportional to 249,884.57, 374,826.58 and 81,404.64 is: 122,106.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,884.57 : 374,826.58 = 81,404.64 : x
  2. Step 2: Convert to fraction form
    249,884.57/374,826.58 = 81,404.64/x
  3. Step 3: Cross multiply
    249,884.57x = 374,826.58 × 81,404.64
  4. Step 4: Simplify right side
    249,884.57x = 30,512,622,603.82
  5. Step 5: Solve for x
    x = 30,512,622,603.82/249,884.57
  6. Step 6: Final answer
    x = 122,106.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.