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Finding the Fourth Proportional to 299,950.65, 449,926.29 and 120,117.30

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Solution

The fourth proportional to 299,950.65, 449,926.29 and 120,117.30 is: 180,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,950.65 : 449,926.29 = 120,117.30 : x
  2. Step 2: Convert to fraction form
    299,950.65/449,926.29 = 120,117.30/x
  3. Step 3: Cross multiply
    299,950.65x = 449,926.29 × 120,117.30
  4. Step 4: Simplify right side
    299,950.65x = 54,043,931,153.82
  5. Step 5: Solve for x
    x = 54,043,931,153.82/299,950.65
  6. Step 6: Final answer
    x = 180,176.08

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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.