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Finding the Fourth Proportional to 355,460.03, 490,538.10 and 202,495.95

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Solution

The fourth proportional to 355,460.03, 490,538.10 and 202,495.95 is: 279,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,460.03 : 490,538.10 = 202,495.95 : x
  2. Step 2: Convert to fraction form
    355,460.03/490,538.10 = 202,495.95/x
  3. Step 3: Cross multiply
    355,460.03x = 490,538.10 × 202,495.95
  4. Step 4: Simplify right side
    355,460.03x = 99,331,979,330.05
  5. Step 5: Solve for x
    x = 99,331,979,330.05/355,460.03
  6. Step 6: Final answer
    x = 279,446.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.