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Finding the Fourth Proportional to 249,051.20, 343,592.32 and 153,392

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Solution

The fourth proportional to 249,051.20, 343,592.32 and 153,392 is: 211,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,051.20 : 343,592.32 = 153,392 : x
  2. Step 2: Convert to fraction form
    249,051.20/343,592.32 = 153,392/x
  3. Step 3: Cross multiply
    249,051.20x = 343,592.32 × 153,392
  4. Step 4: Simplify right side
    249,051.20x = 52,704,313,149.44
  5. Step 5: Solve for x
    x = 52,704,313,149.44/249,051.20
  6. Step 6: Final answer
    x = 211,620.39

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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.