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Finding the Fourth Proportional to 299,700.30, 449,492.85 and 89,345.10

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Solution

The fourth proportional to 299,700.30, 449,492.85 and 89,345.10 is: 134,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,700.30 : 449,492.85 = 89,345.10 : x
  2. Step 2: Convert to fraction form
    299,700.30/449,492.85 = 89,345.10/x
  3. Step 3: Cross multiply
    299,700.30x = 449,492.85 × 89,345.10
  4. Step 4: Simplify right side
    299,700.30x = 40,159,983,632.54
  5. Step 5: Solve for x
    x = 40,159,983,632.54/299,700.30
  6. Step 6: Final answer
    x = 134,000.48

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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.