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Finding the Fourth Proportional to 354,350, 531,774.06 and 320,470.62

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Solution

The fourth proportional to 354,350, 531,774.06 and 320,470.62 is: 480,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350 : 531,774.06 = 320,470.62 : x
  2. Step 2: Convert to fraction form
    354,350/531,774.06 = 320,470.62/x
  3. Step 3: Cross multiply
    354,350x = 531,774.06 × 320,470.62
  4. Step 4: Simplify right side
    354,350x = 170,417,962,708.12
  5. Step 5: Solve for x
    x = 170,417,962,708.12/354,350
  6. Step 6: Final answer
    x = 480,931.18

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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.