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Finding the Fourth Proportional to 249,467.36, 374,226.24 and 80,980.64

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Solution

The fourth proportional to 249,467.36, 374,226.24 and 80,980.64 is: 121,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,467.36 : 374,226.24 = 80,980.64 : x
  2. Step 2: Convert to fraction form
    249,467.36/374,226.24 = 80,980.64/x
  3. Step 3: Cross multiply
    249,467.36x = 374,226.24 × 80,980.64
  4. Step 4: Simplify right side
    249,467.36x = 30,305,080,419.99
  5. Step 5: Solve for x
    x = 30,305,080,419.99/249,467.36
  6. Step 6: Final answer
    x = 121,479.14

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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.