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Finding the Fourth Proportional to 355,302.60, 490,316.56 and 194,158.64

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Solution

The fourth proportional to 355,302.60, 490,316.56 and 194,158.64 is: 267,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,302.60 : 490,316.56 = 194,158.64 : x
  2. Step 2: Convert to fraction form
    355,302.60/490,316.56 = 194,158.64/x
  3. Step 3: Cross multiply
    355,302.60x = 490,316.56 × 194,158.64
  4. Step 4: Simplify right side
    355,302.60x = 95,199,196,459.08
  5. Step 5: Solve for x
    x = 95,199,196,459.08/355,302.60
  6. Step 6: Final answer
    x = 267,938.36

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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.