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Finding the Fourth Proportional to 249,800.88, 374,704.74 and 81,322.05

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Solution

The fourth proportional to 249,800.88, 374,704.74 and 81,322.05 is: 121,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,800.88 : 374,704.74 = 81,322.05 : x
  2. Step 2: Convert to fraction form
    249,800.88/374,704.74 = 81,322.05/x
  3. Step 3: Cross multiply
    249,800.88x = 374,704.74 × 81,322.05
  4. Step 4: Simplify right side
    249,800.88x = 30,471,757,601.52
  5. Step 5: Solve for x
    x = 30,471,757,601.52/249,800.88
  6. Step 6: Final answer
    x = 121,984.19

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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.