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Finding the Fourth Proportional to 404,457.16, 606,806.91 and 120,157.18

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Solution

The fourth proportional to 404,457.16, 606,806.91 and 120,157.18 is: 180,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,457.16 : 606,806.91 = 120,157.18 : x
  2. Step 2: Convert to fraction form
    404,457.16/606,806.91 = 120,157.18/x
  3. Step 3: Cross multiply
    404,457.16x = 606,806.91 × 120,157.18
  4. Step 4: Simplify right side
    404,457.16x = 72,912,207,110.11
  5. Step 5: Solve for x
    x = 72,912,207,110.11/404,457.16
  6. Step 6: Final answer
    x = 180,271.77

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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.