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Finding the Fourth Proportional to 326,794.90, 490,095.15 and 127,000.30

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Solution

The fourth proportional to 326,794.90, 490,095.15 and 127,000.30 is: 190,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,794.90 : 490,095.15 = 127,000.30 : x
  2. Step 2: Convert to fraction form
    326,794.90/490,095.15 = 127,000.30/x
  3. Step 3: Cross multiply
    326,794.90x = 490,095.15 × 127,000.30
  4. Step 4: Simplify right side
    326,794.90x = 62,242,231,078.55
  5. Step 5: Solve for x
    x = 62,242,231,078.55/326,794.90
  6. Step 6: Final answer
    x = 190,462.68

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1.5x scale

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.