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Finding the Fourth Proportional to 249,994.73, 375,031.20 and 81,475.90

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Solution

The fourth proportional to 249,994.73, 375,031.20 and 81,475.90 is: 122,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,994.73 : 375,031.20 = 81,475.90 : x
  2. Step 2: Convert to fraction form
    249,994.73/375,031.20 = 81,475.90/x
  3. Step 3: Cross multiply
    249,994.73x = 375,031.20 × 81,475.90
  4. Step 4: Simplify right side
    249,994.73x = 30,556,004,548.08
  5. Step 5: Solve for x
    x = 30,556,004,548.08/249,994.73
  6. Step 6: Final answer
    x = 122,226.59

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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.