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Finding the Fourth Proportional to 291,457.20, 404,045.13 and 275,492.10

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Solution

The fourth proportional to 291,457.20, 404,045.13 and 275,492.10 is: 381,912.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,457.20 : 404,045.13 = 275,492.10 : x
  2. Step 2: Convert to fraction form
    291,457.20/404,045.13 = 275,492.10/x
  3. Step 3: Cross multiply
    291,457.20x = 404,045.13 × 275,492.10
  4. Step 4: Simplify right side
    291,457.20x = 111,311,241,358.47
  5. Step 5: Solve for x
    x = 111,311,241,358.47/291,457.20
  6. Step 6: Final answer
    x = 381,912.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.