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Finding the Fourth Proportional to 354,508.99, 531,320 and 177,065.53

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Solution

The fourth proportional to 354,508.99, 531,320 and 177,065.53 is: 265,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,508.99 : 531,320 = 177,065.53 : x
  2. Step 2: Convert to fraction form
    354,508.99/531,320 = 177,065.53/x
  3. Step 3: Cross multiply
    354,508.99x = 531,320 × 177,065.53
  4. Step 4: Simplify right side
    354,508.99x = 94,078,457,399.60
  5. Step 5: Solve for x
    x = 94,078,457,399.60/354,508.99
  6. Step 6: Final answer
    x = 265,376.79

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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.