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Finding the Fourth Proportional to 276,005.40, 414,008.10 and 169,717.20

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Solution

The fourth proportional to 276,005.40, 414,008.10 and 169,717.20 is: 254,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,005.40 : 414,008.10 = 169,717.20 : x
  2. Step 2: Convert to fraction form
    276,005.40/414,008.10 = 169,717.20/x
  3. Step 3: Cross multiply
    276,005.40x = 414,008.10 × 169,717.20
  4. Step 4: Simplify right side
    276,005.40x = 70,264,295,509.32
  5. Step 5: Solve for x
    x = 70,264,295,509.32/276,005.40
  6. Step 6: Final answer
    x = 254,575.80

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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.