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Finding the Fourth Proportional to 299,589.40, 449,384.10 and 181,491.40

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Solution

The fourth proportional to 299,589.40, 449,384.10 and 181,491.40 is: 272,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,589.40 : 449,384.10 = 181,491.40 : x
  2. Step 2: Convert to fraction form
    299,589.40/449,384.10 = 181,491.40/x
  3. Step 3: Cross multiply
    299,589.40x = 449,384.10 × 181,491.40
  4. Step 4: Simplify right side
    299,589.40x = 81,559,349,446.74
  5. Step 5: Solve for x
    x = 81,559,349,446.74/299,589.40
  6. Step 6: Final answer
    x = 272,237.10

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1.5x scale

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.