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Finding the Fourth Proportional to 272,005.80, 408,008.70 and 124,549.80

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Solution

The fourth proportional to 272,005.80, 408,008.70 and 124,549.80 is: 186,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,005.80 : 408,008.70 = 124,549.80 : x
  2. Step 2: Convert to fraction form
    272,005.80/408,008.70 = 124,549.80/x
  3. Step 3: Cross multiply
    272,005.80x = 408,008.70 × 124,549.80
  4. Step 4: Simplify right side
    272,005.80x = 50,817,401,983.26
  5. Step 5: Solve for x
    x = 50,817,401,983.26/272,005.80
  6. Step 6: Final answer
    x = 186,824.70

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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.