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Finding the Fourth Proportional to 313,639.62, 432,825.73 and 177,670.66

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Solution

The fourth proportional to 313,639.62, 432,825.73 and 177,670.66 is: 245,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,639.62 : 432,825.73 = 177,670.66 : x
  2. Step 2: Convert to fraction form
    313,639.62/432,825.73 = 177,670.66/x
  3. Step 3: Cross multiply
    313,639.62x = 432,825.73 × 177,670.66
  4. Step 4: Simplify right side
    313,639.62x = 76,900,434,927.96
  5. Step 5: Solve for x
    x = 76,900,434,927.96/313,639.62
  6. Step 6: Final answer
    x = 245,187.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.