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Finding the Fourth Proportional to 325,628.70, 488,515.95 and 125,931.30

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Solution

The fourth proportional to 325,628.70, 488,515.95 and 125,931.30 is: 188,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,628.70 : 488,515.95 = 125,931.30 : x
  2. Step 2: Convert to fraction form
    325,628.70/488,515.95 = 125,931.30/x
  3. Step 3: Cross multiply
    325,628.70x = 488,515.95 × 125,931.30
  4. Step 4: Simplify right side
    325,628.70x = 61,519,448,654.24
  5. Step 5: Solve for x
    x = 61,519,448,654.24/325,628.70
  6. Step 6: Final answer
    x = 188,925.14

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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.