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Finding the Fourth Proportional to 249,872.64, 344,832.39 and 136,695.39

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Solution

The fourth proportional to 249,872.64, 344,832.39 and 136,695.39 is: 188,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,872.64 : 344,832.39 = 136,695.39 : x
  2. Step 2: Convert to fraction form
    249,872.64/344,832.39 = 136,695.39/x
  3. Step 3: Cross multiply
    249,872.64x = 344,832.39 × 136,695.39
  4. Step 4: Simplify right side
    249,872.64x = 47,136,998,035.68
  5. Step 5: Solve for x
    x = 47,136,998,035.68/249,872.64
  6. Step 6: Final answer
    x = 188,644.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.