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Finding the Fourth Proportional to 326,796.90, 490,098.15 and 127,002.30

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Solution

The fourth proportional to 326,796.90, 490,098.15 and 127,002.30 is: 190,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,796.90 : 490,098.15 = 127,002.30 : x
  2. Step 2: Convert to fraction form
    326,796.90/490,098.15 = 127,002.30/x
  3. Step 3: Cross multiply
    326,796.90x = 490,098.15 × 127,002.30
  4. Step 4: Simplify right side
    326,796.90x = 62,243,592,275.75
  5. Step 5: Solve for x
    x = 62,243,592,275.75/326,796.90
  6. Step 6: Final answer
    x = 190,465.68

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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.