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Finding the Fourth Proportional to 355,230.70, 490,225.42 and 194,095.74

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Solution

The fourth proportional to 355,230.70, 490,225.42 and 194,095.74 is: 267,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,230.70 : 490,225.42 = 194,095.74 : x
  2. Step 2: Convert to fraction form
    355,230.70/490,225.42 = 194,095.74/x
  3. Step 3: Cross multiply
    355,230.70x = 490,225.42 × 194,095.74
  4. Step 4: Simplify right side
    355,230.70x = 95,150,666,650.89
  5. Step 5: Solve for x
    x = 95,150,666,650.89/355,230.70
  6. Step 6: Final answer
    x = 267,855.98

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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.