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Finding the Fourth Proportional to 249,589.80, 374,311.80 and 89,647.20

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Solution

The fourth proportional to 249,589.80, 374,311.80 and 89,647.20 is: 134,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,589.80 : 374,311.80 = 89,647.20 : x
  2. Step 2: Convert to fraction form
    249,589.80/374,311.80 = 89,647.20/x
  3. Step 3: Cross multiply
    249,589.80x = 374,311.80 × 89,647.20
  4. Step 4: Simplify right side
    249,589.80x = 33,556,004,796.96
  5. Step 5: Solve for x
    x = 33,556,004,796.96/249,589.80
  6. Step 6: Final answer
    x = 134,444.62

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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.