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Finding the Fourth Proportional to 326,507.64, 489,950.54 and 136,951.12

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Solution

The fourth proportional to 326,507.64, 489,950.54 and 136,951.12 is: 205,505.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,507.64 : 489,950.54 = 136,951.12 : x
  2. Step 2: Convert to fraction form
    326,507.64/489,950.54 = 136,951.12/x
  3. Step 3: Cross multiply
    326,507.64x = 489,950.54 × 136,951.12
  4. Step 4: Simplify right side
    326,507.64x = 67,099,275,197.60
  5. Step 5: Solve for x
    x = 67,099,275,197.60/326,507.64
  6. Step 6: Final answer
    x = 205,505.99

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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.