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Finding the Fourth Proportional to 249,579.88, 344,490.79 and 147,640.80

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Solution

The fourth proportional to 249,579.88, 344,490.79 and 147,640.80 is: 203,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,579.88 : 344,490.79 = 147,640.80 : x
  2. Step 2: Convert to fraction form
    249,579.88/344,490.79 = 147,640.80/x
  3. Step 3: Cross multiply
    249,579.88x = 344,490.79 × 147,640.80
  4. Step 4: Simplify right side
    249,579.88x = 50,860,895,090.04
  5. Step 5: Solve for x
    x = 50,860,895,090.04/249,579.88
  6. Step 6: Final answer
    x = 203,786.04

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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.