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Finding the Fourth Proportional to 285,687.48, 394,292.40 and 182,366.28

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Solution

The fourth proportional to 285,687.48, 394,292.40 and 182,366.28 is: 251,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,687.48 : 394,292.40 = 182,366.28 : x
  2. Step 2: Convert to fraction form
    285,687.48/394,292.40 = 182,366.28/x
  3. Step 3: Cross multiply
    285,687.48x = 394,292.40 × 182,366.28
  4. Step 4: Simplify right side
    285,687.48x = 71,905,638,220.27
  5. Step 5: Solve for x
    x = 71,905,638,220.27/285,687.48
  6. Step 6: Final answer
    x = 251,693.35

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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.