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Finding the Fourth Proportional to 325,307.46, 487,980.33 and 125,628.90

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Solution

The fourth proportional to 325,307.46, 487,980.33 and 125,628.90 is: 188,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,307.46 : 487,980.33 = 125,628.90 : x
  2. Step 2: Convert to fraction form
    325,307.46/487,980.33 = 125,628.90/x
  3. Step 3: Cross multiply
    325,307.46x = 487,980.33 × 125,628.90
  4. Step 4: Simplify right side
    325,307.46x = 61,304,432,079.54
  5. Step 5: Solve for x
    x = 61,304,432,079.54/325,307.46
  6. Step 6: Final answer
    x = 188,450.74

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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.