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Finding the Fourth Proportional to 325,040.40, 487,232.55 and 147,674.70

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Solution

The fourth proportional to 325,040.40, 487,232.55 and 147,674.70 is: 221,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,040.40 : 487,232.55 = 147,674.70 : x
  2. Step 2: Convert to fraction form
    325,040.40/487,232.55 = 147,674.70/x
  3. Step 3: Cross multiply
    325,040.40x = 487,232.55 × 147,674.70
  4. Step 4: Simplify right side
    325,040.40x = 71,951,920,651.49
  5. Step 5: Solve for x
    x = 71,951,920,651.49/325,040.40
  6. Step 6: Final answer
    x = 221,363.01

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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.