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Finding the Fourth Proportional to 299,677.40, 449,581.74 and 112,688.90

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Solution

The fourth proportional to 299,677.40, 449,581.74 and 112,688.90 is: 169,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,677.40 : 449,581.74 = 112,688.90 : x
  2. Step 2: Convert to fraction form
    299,677.40/449,581.74 = 112,688.90/x
  3. Step 3: Cross multiply
    299,677.40x = 449,581.74 × 112,688.90
  4. Step 4: Simplify right side
    299,677.40x = 50,662,871,740.69
  5. Step 5: Solve for x
    x = 50,662,871,740.69/299,677.40
  6. Step 6: Final answer
    x = 169,058.03

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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.