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Finding the Fourth Proportional to 249,040, 343,675.20 and 159,616

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Solution

The fourth proportional to 249,040, 343,675.20 and 159,616 is: 220,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,040 : 343,675.20 = 159,616 : x
  2. Step 2: Convert to fraction form
    249,040/343,675.20 = 159,616/x
  3. Step 3: Cross multiply
    249,040x = 343,675.20 × 159,616
  4. Step 4: Simplify right side
    249,040x = 54,856,060,723.20
  5. Step 5: Solve for x
    x = 54,856,060,723.20/249,040
  6. Step 6: Final answer
    x = 220,270.08

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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.