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Finding the Fourth Proportional to 299,780.40, 449,497.80 and 112,810.80

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Solution

The fourth proportional to 299,780.40, 449,497.80 and 112,810.80 is: 169,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,780.40 : 449,497.80 = 112,810.80 : x
  2. Step 2: Convert to fraction form
    299,780.40/449,497.80 = 112,810.80/x
  3. Step 3: Cross multiply
    299,780.40x = 449,497.80 × 112,810.80
  4. Step 4: Simplify right side
    299,780.40x = 50,708,206,416.24
  5. Step 5: Solve for x
    x = 50,708,206,416.24/299,780.40
  6. Step 6: Final answer
    x = 169,151.17

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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.